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Chemistry
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18 Nov 2019

which statement about nitrous acid and nitric acid is correct?

A) They are both weak acids

B)They are both strong acids

C)They both have one ionizable proton

D)Nitrous acid has the formula HNO3

E)Nitric acid has the formula HNO2

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Keith LeannonLv2
18 Sep 2019
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Related questions


Aqueous solutions of phosphoric acid and sodium nitrite are combined, and the following equilibrium is established. H3PO4(aq) + NO2-(aq) <----> H2PO4-(aq) + HNO2(aq) The equilibrium constant Kc for this reaction is greater than one. Based on this information, which of the following statements is correct?

A) Phosphoric acid is a weaker acid than nitrous acid.

B) Nitrous acid is a weaker acid than water.

C) The nitrite anion is a weaker base than the dihydrogen phosphate anion.

D) The dihydrogen phosphate anion is a stronger acid than nitrous acid.

E) Phosphoric acid is a stronger acid than nitrous acid.

The following is a list of weak acids and their Ka values.

HOCl hypochlorous acid 3.5 x 10^-8

H2S hydrogen sulfide 1.1 x 10^-7

HCN hydrocyanic acid 4.0 x 10^-10

HNO2 nitrous acid 4.5 x 10^-4

a. Which acid given above is the strongest? Explain your choice

b. Write the Ka expression for the strongest acid.

c. List the conjugate bases of each of the weak acids above and determine their Kb values.

d. Which acid has the strongest conjugate base? Explain your choice.

e. Determine the pH and pOH of a 0.1M solution of each.

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