# Chapter 15 (Acids and Bases) Questions Part 2

Chapter 15 (Acids and Bases) Questions Part 2

1- 0.25g of sodium hydroxide (NaOH ) pellets are dissolved in water to make 7.0L of solution. What is the pOH of the solution in Part B? Express the pOH numerically to two decimal places.

2- Calculate the pH of a 0.10 M solution of barium hydroxide, Ba(OH) 2 .Express your answer numerically using two decimal places.

3- Calculate the pH of a 0.10 M solution of NaOH . Express your answer numerically using two decimal places.

4- Calculate the pH of a 0.10 M solution of hydrazine, N 2 H 4 . K b for hydrazine is 1.3×10 −6 . Express your answer numerically using two decimal places.

5- Calculate the pH of a 0.10 M solution of hypochlorous acid, HOCl . K a of HOCl is 3.5×10 −8 . Express your answer numerically using two decimal places.

6- Calculate the pH of a 0.10 M solution of HCl . Express your answer numerically using two decimal places.

7- If K b for NX 3 is 7.0×10−6, what is the pOH of a 0.175M aqueous solution of NX 3 ? Express your answer numerically.

8- If K b for NX 3 is 7.0×10−6, what is the percent ionization of a 0.325M aqueous solution of NX 3 ?

Express your answer numerically to three significant figures.

9- If K b for NX 3 is 7.0×10−6 , what is the the pK a for the following reaction?

HNX 3 + (aq)+H 2 O(l)⇌NX 3 (aq)+H 3 O + (aq) Express your answer numerically to two decimal places.

10- For each strong base solution, determine [H 3 O + ] [OH − ] , pH , and pOH . 8.76×10−3M LiOH , 8.76×10−3M LiOH ,8.76×10−3M LiOH, and 8.76×10−3M LiOH

11- Determine the pH of each solution. 0.16M KCHO 2 , 0.20M CH 3 NH 3 I , 0.20M CH 3 NH 3 I

12- Rank the acids from strongest to weakest.:MgH2,HBr, HI, H2Se

13- Using the Arrhenius concept of acids and bases, identify the Arrhenius acid and base in each of the following reactions: HF, LiOH, HNO3, (CH3)2NH

14- Using the Brønsted-Lowry concept of acids and bases, identify the Brønsted-Lowry acid and base in each of the following reactions: HSO 4 − ,H 2 O, (CH 3 ) 3 N , BCl 3

#### Solution Preview

Dear student, I've done all problems except 11, 13 and 14.

Q 11: I need the Ka or Kb values ...

#### Solution Summary

The expert examines Brønsted-Lowry concept of acids and bases. The Arrhenius concepts are also provided.