Is kbr, hco3, ba(oh)2, hno2, kno3, hf, h3po4, hcl and soap acid or base?

Is kbr, hco3, ba(oh)2, hno2, kno3, hf, h3po4, hcl and soap acid or base?

In chemistry, the Brønsted-Lowry acid-base theory gives two possible definitions of acids and bases, and they are significantly different. Acids are proton donors; bases are defined as proton acceptors (and water is defined as a special substance that can act as either an acid or base). Given this definition, the HCO3 ion (also known as bicarbonate ion) is not acidic but basic due to its high concentration of protons, thus making it capable of accepting protons from other substances in solution.

Is kbr acid or base?

Potassium bromide is a chemical compound with the molecular formula KBr. It is a white crystalline solid at room temperature. It forms when a solution of potassium bromide in water evaporates. Potassium bromide is formed by combining an ionic compound (potassium) with an inorganic non-metal halogen compound (bromine).

Because it contains both a metal ion and a halogen, potassium bromide must be soluble in water to form. Its solubility also explains why potassium bromide can dissolve silver chloride to form solid silver bromide precipitate at normal room temperatures. When potassium bromide dissolves in water, its ions are released into the solution: Potassium bromide is an electrolyte because it dissociates into ions when dissolved in water.

Thus, like all electrolytes, it conducts electricity. Potassium bromide dissociates into positive and negative ions means that potassium bromide solutions will conduct electricity from more negative areas to more positive areas within a cell or circuit. For example, if you were to connect two electrodes (one made of zinc metal and one made of copper metal) across a test tube containing a concentrated solution of potassium bromide, electrons would flow from zinc through copper and into your circuit as they moved toward positively charged areas within your test tube.

Is hco3 acid or base?

If a compound contains an OH group, it is an amphiprotic species (Greek: Amphi-, two; photos, first; literally: having an affinity for acids and bases). Water is such a species. Strong acids can deprotonate hydrogen carbonate ion (bicarbonate ion), [HCO], to form [HCO]. This process releases a proton in solution and forms a salt (e.g., sodium hydrogen carbonate).

The reverse process of adding water to form bicarbonate ions releases protons in solution but produces salts such as sodium bicarbonate. These two processes are reversible, so it depends on what your question is. In solutions that contain weak acids, like acetic acid (CHCOOH), bicarbonate is considered a weak base because it dissociates into HCO.

However, in solutions that contain strong acids like HClO, HCO will act as a weak acid since it dissociates into HO and CO. The pKa values for these reactions are 4.75 for CHCOOH and -0.76 for HClO, respectively. If you’re asking whether bicarbonate will react with acetic acid or hydrochloric acid, then yes! It’s amphiprotic! If you’re asking whether hydrochloric acid will react with bicarbonate, then no!

Is ba(oh)2 acid or base?

Barium hydroxide is an amphoteric substance. The question asked whether barium hydroxide (Ba(OH)2) can react with a strong base or a strong acid. An amphoteric substance acts as either an acid or a base, depending on how it is treated. In Ba(OH) 2’s case, treatment with a strong base will remove OH- ions from the solution forming water and leaving behind BaO. Treatment with a strong acid will remove H+ ions from the solution forming water and leaving behind Barium ion (bare ion).

In both cses, BaO becomes insoluble in water, allowing for easy precipitation of BaO out of solution when cold water is added to concentrated NaOH. Thus we see that Ba(OH)2 can be considered an acid or a base depending on its reaction with other substances. A common example of an amphoteric substance is baking soda. When mixed with vinegar, it reacts to form carbonic acid (HCO3-) and releases bubbles of CO2 gas. When mixed with lemon juice, it reacts to form sodium citrate (Na3C6H5O7) and citric acid (C6H8O7) and releases bubbles of CO2 gas.

Is hno2 acid or base?

HNO (nitric oxide) is an oxidizer that produces oxygen radicals in the human body. It can reduce iron and copper ions from their oxidation states. It can also be used to reduce chromium (III), molybdenum (VI), tungsten (VI), uranium (IV), and plutonium (IV). It is also a weak oxidizer of organic matter, useful as a cleaning agent in organic synthesis. NO acts as an oxidizing agent for many inorganic compounds such as halides, cyanides, selenocyanates, and sulfides.

Also, nitrous acid is a strong oxidant for aromatic compounds such as benzene and naphthalene. The reaction between these two substances is explosive because of their high reactivity toward each other. Hence, care should be taken while using them in a chemical reaction. This happens because hydrogen peroxide decomposes into water and oxygen gas when heated above 100 degrees Celsius: 2H2O2 → 2H2O + O2. This reaction releases heat energy, leading to further reactions with other chemicals present nearby.

Is kno3 acid or base?

Knowing (KNO), also known as nitronitride, is a nitrogen-rich binary compound with the chemical formula KNO. It does, however, have a relatively low melting point of 232 °C, which allows it to be heated and melted in a glass tube. However, if heated to 310 °C, it will explode. At temperatures below 150 °C and above 200 °C, KNO is also sensitive to oxygen. When heated above 300 °C, it reacts with atmospheric oxygen to form potassium peroxide.

In addition, KNO is soluble in water and other polar solvents such as ethanol and acetone. As an alkali metal nitrate salt, it dissolves well in hot water but not cold water because of its high solubility product constant K value of 4×10^−5 at 25 °C. The dissociation reaction for potassium nitrate occurs according to: In terms of acidity/basicity, KNO falls into neither category; rather, it has amphoteric properties that make it both an acid and a base depending on its environment.

Is hf acid or base?

A neutralization reaction (also called a double displacement reaction or an elimination reaction)[citation needed] occurs when two chemical species react to produce two products.

The most general form of such a reaction is A B + C ⇌ {\displaystyle \rightleftharpoons } D + E, where A and B represent reactants that displace each other to form compounds C and D. Compound E is formed from either product of a single displacement reaction.

This redox process can be classified as a concerted dealkylation/dehydration exchange. Many reactions are not considered examples of true double displacement reactions because they include steps that break molecular symmetry, thus making them more complex than simple molecular rearrangements.

For example, if Br 2 were added to an alkene containing two alkyl groups, it would first react with one of these groups and then subsequently attack the second group. In contrast, a true DDX process would proceed through a transition state in which both alkyl groups were bound simultaneously by bromine atoms; there would be no intermediate in which only one alkyl group was attached to bromine while the other was free.

Is h3po4 acid or base?

HCl (hydrochloric acid) is a common household chemical that occurs in two forms: aqueous (HCl dissolved in water), which is corrosive, and gaseous (HCl vapor). HCl is a colorless liquid with a sharp pungent odor in its pure form. It can dissolve many substances; for example, it can be used to clean pennies made of copper. HCl was first prepared by Carl Wilhelm Scheele, who heated sal ammoniac (ammonium chloride) in 1771.

Sal ammoniac is made by mixing saltpeter (potassium nitrate) with an alkali such as wood ash or plant ashes. Ammonia gas is given off during the reaction and can be collected over water in a jar. In 1811 Humphry Davy showed that HCl could also be produced by passing chlorine gas through molten sodium hydroxide. The resulting solution contains 37% HCl and 63% sodium chloride (salt).

Today, large amounts of hydrochloric acid are produced from methane gas, ammonia, and water using high-temperature catalysts under pressure. Hydrochloric acid has many uses, including cleaning products such as laundry detergents. It also reacts with metals to produce hydrogen gas which burns when ignited, forming hydrochloric acid again.

Is HCl acid or base?

Hydrochloric acid is an inorganic compound with the formula HCl. This colorless liquid is a highly corrosive strong mineral acid with many industrial uses. It is also sometimes referred to as muriatic acid and hydronium chloride. It is a solution of hydrogen chloride in water. In other words, it is composed of Hydrogen (H+) and Chlorine (Cl-). Both elements are extremely reactive and form hydrochloric acid when combined with water.

The reaction produces heat which causes steam that turns into gas upon release from its container, thus, evaporating quickly. When hydrochloric acid and sodium hydroxide react, saltwater is formed: sodium chloride (NaCl), also known as table salt. In short, hydrochloric acid is a very reactive substance that forms dangerous fumes when mixed with water; however, it can be used safely if handled properly. Hydro means water, while Chloride refers to chlorine.

Is soap acid or base?

Soap is an alkali; it has a pH of 10 (10 times more alkaline than pure water). Soap is produced by neutralizing fats with lye or caustic soda.

The reaction for producing soap is fat + lye → soap + glycerol + water. This reaction can be written as: where R represents a long hydrocarbon chain such as stearic acid CH(CH)COOH.

Soaps are amphiprotic, acting as either an acid or a base depending on their surroundings. Soaps will behave as bases in strongly basic solutions, reacting with OH ions to produce soap salts. In weak acidic solutions, they will behave as acids releasing H ions in solution: Soaps are used to clean skin because they dissolve oils and other organic compounds from our bodies that would otherwise stay on our skin and clog pores causing acne and other problems.

Experiment 1: HCl

Dilute hydrochloric acid (HCl) is a strong acid that can dissolve most substances. It produces hydrogen ions (H+) in water solution. Add two (2 mL) drops of concentrated HCl to 10 mL of vinegar. Test pH with litmus paper. Observe if litmus paper color changes from red to blue as expected—record results in your lab notebook on page 1. Write down observations on page 2 in your lab notebook. Concentrated HCl: Dilute hydrochloric acid has 0 Molarity. As you add more HCl to water, it becomes less acidic. What happens when you add too much? How do you know when you have reached 0 Molarity? Try adding four drops of concentrated HCl to 10 mL of vinegar. Record results in your lab notebook on page 1. Write down observations on page 2 in your lab notebook. Repeat Experiment #1 using Ba(OH)2 instead of Litmus Paper as an indicator for pH level. Is it true that Ba(OH)2 turns violet at high pH and yellow at low pH levels?

Experiment 2: NaOH

Dissolve 5.0g of NaOH in about 25mL of water to prepare a 0.5M solution. Add ten drops of hydrochloric acid to turn all of it into NaCl. Add 2-3 drops of bromine water (or one drop if you don’t have any bromine water; it’s ok to eyeball it). When you add the bromine water, a yellow gas will form on top, and blue liquid will form at the bottom; mix these in your beaker. If your breaker isn’t big enough to hold both layers, mix as much as you can fit in there and then pour out extra from one layer back into its bottle.

Experiment 3: NaHCO3

Place a drop of NaHCO3 solution on a tissue. It fizzes slowly. Filter out a small amount using filter paper. Now test it again with phenolphthalein (PH indicator). The PH indicator should turn pink/red when dipped into it; if so, PH is approximately 7.6-8. This experiment tested whether sodium bicarbonate is an acid or base. Aqueous solutions of bases and acids react with carbonates to form carbon dioxide gas, which bubbles off as a gas. Bases are defined as compounds that produce OH ions in water solutions. Acids produce H ions in water solutions; when you add NaHCO3 to water, CO2 forms because there are excess OH ions from H+ from water reacting with excess H+ from NaHCO3 to form more OH- ions, and CO2 gas bubbles off.

Experiment 4: HF

HF + Al → AlF + HF Experiment 4: HF:HF + NaOH → NaF + HOH Experiment 4: HF:HF + KBrO → KBr + HF Experiment 4: HF:HF + Baco → BaF + CO Experiment 4: HNO3 : HNO3 (aq) -> NO2 (g/aq) & H20 Experiment 5-7 Given above experiments what will be happen if we mix them together. Which are free bases of acids? What are their chemical formulae and physical state etc.? 

Experiment 5: HNO3 (it’s a pinch of salt!)

While sodium hydroxide retaliates with hydrochloric acid (HCl), sodium chloride, water (H2O), and nitrogen dioxide have been formed. Sodium chloride is a white solid commonly found on roads as road salt during the winter months, hence its name. The latter two compounds are colorless gases at room temperature (unless you put them in water).

However, if you put them in water, they both dissolve to give clear solutions. Nitrogen dioxide is an irritant gas that smells very bad—it was used as a chemical weapon in World War I! Fortunately for us, atmospheric nitrogen dioxide concentrations are relatively low; unless you live near a steel mill where lots of iron is processed.

Experiment 6: KBr, Ba(OH)2, NH4NO3 (cannot be tested!)

KBr and Ba(OH)2 are both salts (where an ionic compound is neutralized by dissolving in water), so they must be neutral. NH4NO3 is an aqueous solution of ammonia, so it must be basic. HCO3-, HF, HNO3, and KN0H are all acids (dissolved in water), so they must be acidic. HF can also react with HCl to form HCl + HF, which has a pH of 4. So if you add 0.1M of each of these solutions, you will get a mixture with a pH of 6. It should not contain any OH- ions because none of them have OH- ions present in their formulas.

The hydronium ion concentration can be calculated using molarity = [H+]/[OH-] = 1 x 10^(-6)/0 = 1 x 10^(-6). So there should be approximately 1 x 10^(-6) hydronium ions per liter which means that there would be approximately 6×10^(-7) M H+ in 1L = 6×10^(-7) mol/L H+. This corresponds to a pH of 3.

Conclusion:

It depends. A compound is classified as either an acid or a base by considering its equilibrium reaction with water. If it gives up a proton (acid), it is acidic. If it takes up a proton (base), it is basic. It matters not whether your compound in question gives off carbon dioxide (carbonic acid), hydrogen cyanide (hydrocyanic acid), boron

Is kbr, hco3, ba(oh)2, hno2, kno3, hf, h3po4, hcl and soap acid or base?

In chemistry, the Brønsted-Lowry acid-base theory gives two possible definitions of acids and bases, and they are significantly different. Acids are proton donors; bases are defined as proton acceptors (and water is defined as a special substance that can act as either an acid or base). Given this definition, the HCO3 ion (also known as bicarbonate ion) is not acidic but basic due to its high concentration of protons, thus making it capable of accepting protons from other substances in solution.

Is kbr acid or base?

Potassium bromide is a chemical compound with the molecular formula KBr. It is a white crystalline solid at room temperature. It forms when a solution of potassium bromide in water evaporates. Potassium bromide is formed by combining an ionic compound (potassium) with an inorganic non-metal halogen compound (bromine).

Because it contains both a metal ion and a halogen, potassium bromide must be soluble in water to form. Its solubility also explains why potassium bromide can dissolve silver chloride to form solid silver bromide precipitate at normal room temperatures. When potassium bromide dissolves in water, its ions are released into the solution: Potassium bromide is an electrolyte because it dissociates into ions when dissolved in water.

Thus, like all electrolytes, it conducts electricity. Potassium bromide dissociates into positive and negative ions means that potassium bromide solutions will conduct electricity from more negative areas to more positive areas within a cell or circuit. For example, if you were to connect two electrodes (one made of zinc metal and one made of copper metal) across a test tube containing a concentrated solution of potassium bromide, electrons would flow from zinc through copper and into your circuit as they moved toward positively charged areas within your test tube.

Is hco3 acid or base?

If a compound contains an OH group, it is an amphiprotic species (Greek: Amphi-, two; photos, first; literally: having an affinity for acids and bases). Water is such a species. Strong acids can deprotonate hydrogen carbonate ion (bicarbonate ion), [HCO], to form [HCO]. This process releases a proton in solution and forms a salt (e.g., sodium hydrogen carbonate).

The reverse process of adding water to form bicarbonate ions releases protons in solution but produces salts such as sodium bicarbonate. These two processes are reversible, so it depends on what your question is. In solutions that contain weak acids, like acetic acid (CHCOOH), bicarbonate is considered a weak base because it dissociates into HCO.

However, in solutions that contain strong acids like HClO, HCO will act as a weak acid since it dissociates into HO and CO. The pKa values for these reactions are 4.75 for CHCOOH and -0.76 for HClO, respectively. If you’re asking whether bicarbonate will react with acetic acid or hydrochloric acid, then yes! It’s amphiprotic! If you’re asking whether hydrochloric acid will react with bicarbonate, then no!

Is ba(oh)2 acid or base?

Barium hydroxide is an amphoteric substance. The question asked whether barium hydroxide (Ba(OH)2) can react with a strong base or a strong acid. An amphoteric substance acts as either an acid or a base, depending on how it is treated. In Ba(OH) 2’s case, treatment with a strong base will remove OH- ions from the solution forming water and leaving behind BaO. Treatment with a strong acid will remove H+ ions from the solution forming water and leaving behind Barium ion (bare ion).

In both cses, BaO becomes insoluble in water, allowing for easy precipitation of BaO out of solution when cold water is added to concentrated NaOH. Thus we see that Ba(OH)2 can be considered an acid or a base depending on its reaction with other substances. A common example of an amphoteric substance is baking soda. When mixed with vinegar, it reacts to form carbonic acid (HCO3-) and releases bubbles of CO2 gas. When mixed with lemon juice, it reacts to form sodium citrate (Na3C6H5O7) and citric acid (C6H8O7) and releases bubbles of CO2 gas.

Is hno2 acid or base?

HNO (nitric oxide) is an oxidizer that produces oxygen radicals in the human body. It can reduce iron and copper ions from their oxidation states. It can also be used to reduce chromium (III), molybdenum (VI), tungsten (VI), uranium (IV), and plutonium (IV). It is also a weak oxidizer of organic matter, useful as a cleaning agent in organic synthesis. NO acts as an oxidizing agent for many inorganic compounds such as halides, cyanides, selenocyanates, and sulfides.

Also, nitrous acid is a strong oxidant for aromatic compounds such as benzene and naphthalene. The reaction between these two substances is explosive because of their high reactivity toward each other. Hence, care should be taken while using them in a chemical reaction. This happens because hydrogen peroxide decomposes into water and oxygen gas when heated above 100 degrees Celsius: 2H2O2 → 2H2O + O2. This reaction releases heat energy, leading to further reactions with other chemicals present nearby.

Is kno3 acid or base?

Knowing (KNO), also known as nitronitride, is a nitrogen-rich binary compound with the chemical formula KNO. It does, however, have a relatively low melting point of 232 °C, which allows it to be heated and melted in a glass tube. However, if heated to 310 °C, it will explode. At temperatures below 150 °C and above 200 °C, KNO is also sensitive to oxygen. When heated above 300 °C, it reacts with atmospheric oxygen to form potassium peroxide.

In addition, KNO is soluble in water and other polar solvents such as ethanol and acetone. As an alkali metal nitrate salt, it dissolves well in hot water but not cold water because of its high solubility product constant K value of 4×10^−5 at 25 °C. The dissociation reaction for potassium nitrate occurs according to: In terms of acidity/basicity, KNO falls into neither category; rather, it has amphoteric properties that make it both an acid and a base depending on its environment.

Is hf acid or base?

A neutralization reaction (also called a double displacement reaction or an elimination reaction)[citation needed] occurs when two chemical species react to produce two products.

The most general form of such a reaction is A B + C ⇌ {\displaystyle \rightleftharpoons } D + E, where A and B represent reactants that displace each other to form compounds C and D. Compound E is formed from either product of a single displacement reaction.

This redox process can be classified as a concerted dealkylation/dehydration exchange. Many reactions are not considered examples of true double displacement reactions because they include steps that break molecular symmetry, thus making them more complex than simple molecular rearrangements.

For example, if Br 2 were added to an alkene containing two alkyl groups, it would first react with one of these groups and then subsequently attack the second group. In contrast, a true DDX process would proceed through a transition state in which both alkyl groups were bound simultaneously by bromine atoms; there would be no intermediate in which only one alkyl group was attached to bromine while the other was free.

Is h3po4 acid or base?

HCl (hydrochloric acid) is a common household chemical that occurs in two forms: aqueous (HCl dissolved in water), which is corrosive, and gaseous (HCl vapor). HCl is a colorless liquid with a sharp pungent odor in its pure form. It can dissolve many substances; for example, it can be used to clean pennies made of copper. HCl was first prepared by Carl Wilhelm Scheele, who heated sal ammoniac (ammonium chloride) in 1771.

Sal ammoniac is made by mixing saltpeter (potassium nitrate) with an alkali such as wood ash or plant ashes. Ammonia gas is given off during the reaction and can be collected over water in a jar. In 1811 Humphry Davy showed that HCl could also be produced by passing chlorine gas through molten sodium hydroxide. The resulting solution contains 37% HCl and 63% sodium chloride (salt).

Today, large amounts of hydrochloric acid are produced from methane gas, ammonia, and water using high-temperature catalysts under pressure. Hydrochloric acid has many uses, including cleaning products such as laundry detergents. It also reacts with metals to produce hydrogen gas which burns when ignited, forming hydrochloric acid again.

Is HCl acid or base?

Hydrochloric acid is an inorganic compound with the formula HCl. This colorless liquid is a highly corrosive strong mineral acid with many industrial uses. It is also sometimes referred to as muriatic acid and hydronium chloride. It is a solution of hydrogen chloride in water. In other words, it is composed of Hydrogen (H+) and Chlorine (Cl-). Both elements are extremely reactive and form hydrochloric acid when combined with water.

The reaction produces heat which causes steam that turns into gas upon release from its container, thus, evaporating quickly. When hydrochloric acid and sodium hydroxide react, saltwater is formed: sodium chloride (NaCl), also known as table salt. In short, hydrochloric acid is a very reactive substance that forms dangerous fumes when mixed with water; however, it can be used safely if handled properly. Hydro means water, while Chloride refers to chlorine.

Is soap acid or base?

Soap is an alkali; it has a pH of 10 (10 times more alkaline than pure water). Soap is produced by neutralizing fats with lye or caustic soda.

The reaction for producing soap is fat + lye → soap + glycerol + water. This reaction can be written as: where R represents a long hydrocarbon chain such as stearic acid CH(CH)COOH.

Soaps are amphiprotic, acting as either an acid or a base depending on their surroundings. Soaps will behave as bases in strongly basic solutions, reacting with OH ions to produce soap salts. In weak acidic solutions, they will behave as acids releasing H ions in solution: Soaps are used to clean skin because they dissolve oils and other organic compounds from our bodies that would otherwise stay on our skin and clog pores causing acne and other problems.

Experiment 1: HCl

Dilute hydrochloric acid (HCl) is a strong acid that can dissolve most substances. It produces hydrogen ions (H+) in water solution. Add two (2 mL) drops of concentrated HCl to 10 mL of vinegar. Test pH with litmus paper. Observe if litmus paper color changes from red to blue as expected—record results in your lab notebook on page 1. Write down observations on page 2 in your lab notebook. Concentrated HCl: Dilute hydrochloric acid has 0 Molarity. As you add more HCl to water, it becomes less acidic. What happens when you add too much? How do you know when you have reached 0 Molarity? Try adding four drops of concentrated HCl to 10 mL of vinegar. Record results in your lab notebook on page 1. Write down observations on page 2 in your lab notebook. Repeat Experiment #1 using Ba(OH)2 instead of Litmus Paper as an indicator for pH level. Is it true that Ba(OH)2 turns violet at high pH and yellow at low pH levels?

Experiment 2: NaOH

Dissolve 5.0g of NaOH in about 25mL of water to prepare a 0.5M solution. Add ten drops of hydrochloric acid to turn all of it into NaCl. Add 2-3 drops of bromine water (or one drop if you don’t have any bromine water; it’s ok to eyeball it). When you add the bromine water, a yellow gas will form on top, and blue liquid will form at the bottom; mix these in your beaker. If your breaker isn’t big enough to hold both layers, mix as much as you can fit in there and then pour out extra from one layer back into its bottle.

Experiment 3: NaHCO3

Place a drop of NaHCO3 solution on a tissue. It fizzes slowly. Filter out a small amount using filter paper. Now test it again with phenolphthalein (PH indicator). The PH indicator should turn pink/red when dipped into it; if so, PH is approximately 7.6-8. This experiment tested whether sodium bicarbonate is an acid or base. Aqueous solutions of bases and acids react with carbonates to form carbon dioxide gas, which bubbles off as a gas. Bases are defined as compounds that produce OH ions in water solutions. Acids produce H ions in water solutions; when you add NaHCO3 to water, CO2 forms because there are excess OH ions from H+ from water reacting with excess H+ from NaHCO3 to form more OH- ions, and CO2 gas bubbles off.

Experiment 4: HF

HF + Al → AlF + HF Experiment 4: HF:HF + NaOH → NaF + HOH Experiment 4: HF:HF + KBrO → KBr + HF Experiment 4: HF:HF + Baco → BaF + CO Experiment 4: HNO3 : HNO3 (aq) -> NO2 (g/aq) & H20 Experiment 5-7 Given above experiments what will be happen if we mix them together. Which are free bases of acids? What are their chemical formulae and physical state etc.? 

Experiment 5: HNO3 (it’s a pinch of salt!)

While sodium hydroxide retaliates with hydrochloric acid (HCl), sodium chloride, water (H2O), and nitrogen dioxide have been formed. Sodium chloride is a white solid commonly found on roads as road salt during the winter months, hence its name. The latter two compounds are colorless gases at room temperature (unless you put them in water).

However, if you put them in water, they both dissolve to give clear solutions. Nitrogen dioxide is an irritant gas that smells very bad—it was used as a chemical weapon in World War I! Fortunately for us, atmospheric nitrogen dioxide concentrations are relatively low; unless you live near a steel mill where lots of iron is processed.

Experiment 6: KBr, Ba(OH)2, NH4NO3 (cannot be tested!)

KBr and Ba(OH)2 are both salts (where an ionic compound is neutralized by dissolving in water), so they must be neutral. NH4NO3 is an aqueous solution of ammonia, so it must be basic. HCO3-, HF, HNO3, and KN0H are all acids (dissolved in water), so they must be acidic. HF can also react with HCl to form HCl + HF, which has a pH of 4. So if you add 0.1M of each of these solutions, you will get a mixture with a pH of 6. It should not contain any OH- ions because none of them have OH- ions present in their formulas.

The hydronium ion concentration can be calculated using molarity = [H+]/[OH-] = 1 x 10^(-6)/0 = 1 x 10^(-6). So there should be approximately 1 x 10^(-6) hydronium ions per liter which means that there would be approximately 6×10^(-7) M H+ in 1L = 6×10^(-7) mol/L H+. This corresponds to a pH of 3.

Conclusion:

It depends. A compound is classified as either an acid or a base by considering its equilibrium reaction with water. If it gives up a proton (acid), it is acidic. If it takes up a proton (base), it is basic. It matters not whether your compound in question gives off carbon dioxide (carbonic acid), hydrogen cyanide (hydrocyanic acid), boron