Name ____________________________________________ Date _________________________ Period__
Sample Problems for Chapter 14: Acids and Bases
14.7 Reactions of Acids and Bases (Read pgs. 465- 468 in the chemistry textbook)
14.8 Acid-Base Titration (Read pgs. 468 - 470 in the chemistry textbook)
1.
(a) What is the definition of a salt?
(b) Here are some examples of making salts:
(i) from acids: take away the H+ and replace it with a cation
Acid
Salt
Formula:
Formula:
(ii) from bases: take away the OH─ and replace it with an anion
Base
Formula:
2.
Salt
Formula:
(a) What is a neutralization reactions:
(b) What 2 products are formed during a neutralization reaction?
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3. Write the following equations showing the formation of a salt from the reaction of a metal with and an acid:
(a) aqueous sodium hydroxide + hydrochloric acid → water + aqueous sodium chloride
(b) nitric acid and aqueous barium hydroxide → water + aqueous barium nitrate
(c) solid magnesium hydroxide + hydrobromic acid → aqueous magnesium bromide + water
(d) solid zinc hydroxide l + nitric acid → aqueous zinc nitrate + water
4. Predict the products of the following neutralization reactions. Use a solubility chart to determine the phase
of matter of the salt. Balance the resulting equation.
(a) H2SO4(aq) + Mg(OH)2(s) →
Ca(OH)2(s) →
(b)
H3PO4(aq) +
(c)
NaOH(s) + H2SO4(aq) →
(d) HNO3(aq) + NH4OH(aq) →
(e) HCl(aq) +
Pb(OH)2(s) →
(f) Cu(OH)2(s) +
HClO4(aq) →
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5. Write complete, balanced equations for each of the following neutralization reactions. Use a solubility chart
to help determine the phase of matter of the salt.
(a) solid lithium hydroxide + phosphoric acid
(b) hydroioidic acid + aqueous ammonium hydroxide
(c) nitric acid + solid calcium hydroxide
(c) suluric acid + solid aluminum hydroxide
(d) hydrochloric acid + solid iron (III) hydroxide
(e) sulfuric acid + aqueous barium hydroxide
ACID / BASE TITRATION
6. Define the following words:
(a) titration
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6. Continued:
(b) titrant
(c) indicator
(d) endpoint
7.
(a) What is a commonly used indicator?
(b) What color is this indicator in an acidic solution?
(c) What color is this indicator in a basic solution?
8. A few drops of phenolphthalein are added to a 25.0-mL sample of an HCl solution. This solution is then
titrated with a 0.185 M NaOH solution.
(a) Which is the solution of unknown concentration?
(b) What is the indicator?
(c) What is the titrant?
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8. Continued:
(d) If 32.6 mL of the titrant were required to neutralize the HCl, what was the molarity of the HCl?
9. What is the molarity of an HCl solution if 28.6 mL of a 0.175 M NaOH solution is needed to neutralize a
25.0-mL sample of the HCl solution?
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10. What volume, in milliliter, of a 0.115 M NaOH solution would neutralize 25.0 mL of a 0.106 M H2SO4
solution?
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11. What volume, in milliliter, of a 0.158 M KOH solution would neutralize 50.0 mL of a 0.212 M HCl
solution?
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