Study Guide Part 5: Acids, Bases, and Salts

Answers

 

1. Complete and balance the following acid-base reactions:

(a) 2 HNO3 + Ca(OH)2 ---> Ca(NO3)2 + 2 H2O

(b) H2SO4 + Cu(OH)2 ---> CuSO4 + 2 H2O

(c) H3PO4 + A1(OH)3 ---> AlPO4 + 3 H2O

(d) 2 HCl + Zn(OH)2 ---> ZnCl2 + 2 H2O

(e) HCH3CO2 + NaOH ---> NaCH3CO2 + H2O

(f) 3 HClO4 + Cr(OH)3 ---> Cr(ClO4)3 + 3 H2O

(g) 2 NH4OH + H2SO4 ---> (NH4)2SO4 + 2 H2O

 

2. What are the formulas of the acid and base that are needed to produce the following salts?

Question

Answer

(a) sodium nitrate

HNO3 and NaOH

(b) calcium chloride

HCl and Ca(OH)2

(c) aluminum chlorate

HClO3 and Al(OH)3

(d) zinc(II) nitrite

HNO2 and Zn(OH)2

(e) nickel(II) nitrate

HNO3 and Ni(OH)2

(f) potassium phosphate

H3PO4 and KOH

(g) magnesium acetate

HCH3CO2 and Mg(OH)2

(h) iron(III) sulfate

H2SO4 and Fe(OH)3

3. What is the formula of the salt would be produced by reaction of these acids and bases?

Question

Answer

(a) sulfuric acid and lithium hydroxide

Li2SO4

(b) nitric acid and iron(II) hydroxide

Fe(NO3)2

(c) acetic acid and sodium hydroxide

NaCH3CO2

(d) sulfuric acid and copper(II) hydroxide

CuSO4

(e) perchloric acid and magnesium hydroxide

Mg(ClO4)2

(f) phosphoric acid and barium hydroxide

Ba3(PO4)2

(g) potassium dihydrogen phosphate and potassium hydroxide

K3PO4 (or K2HPO4)

(h) hydrochloric acid and zinc(II) hydroxide

ZnCl2

(i) sulfurous acid and ammonium hydroxide

(NH4)2SO3

(j) hypochlorous acid and calcium hydroxide

Ca(OCl)2

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