Chemistry 222 Chapter 7 Problems with Answers S08

Chemistry 222 Chapter 7 Problems with Answers S08 -...

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Chemistry 222 Chapter 7 Problems 7.13 Write an equation for the reaction that takes place when each acid is added to water. For a diprotic or triprotic acid, consider only its first ionization. a. HNO 3 + H 2 O NO 3 - + H 3 O + b. HBr + H 2 O Br - + H 3 O + c. H 2 SO 3 + H 2 O  HSO 3 - + H 3 O + d. H 2 SO 4 + H 2 O HSO 4 - + H 3 O + e. HCO 3 - + H 2 O  CO 3 2- + H 3 O + f. H 3 BO 3 + H 2 O  H 2 BO 3 - + H 3 O + 7.14 Write an equation for the reaction that takes place when each base is added to water. a. LiOH Li + + OH - b. (CH 3 ) 2 NH + H 2 O  (CH 3 ) 2 NH 2 + + OH - 7.15 For each of the following, tell whether the base is strong or weak. a. Acetic acid--weak b. HCl--strong c. H 3 PO 4 --weak d. H 2 SO 4 —strong e. HCN--weak f. H 2 CO 3 --weak 7.16 For each of the following, tell whether the base is strong or weak. a. NaOH--strong b. Sodium acetate--weak c. KOH--strong d. Ammonia—weak e. Water--weak 7.17 If an acid has a p K a of 2.1, is it strong or weak? It is weak. Strong acids have negative p K a values. 7.19 Define (a) a Brønsted-Lowry acid and (b) a Brønsted-Lowry base.
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