Chapter 16 Module 3

Acids and Bases Module 3

Course Name: Chemistry Course No.132 NT Teacher: Bill Cook Teacher's Email: bcook@icc.edu/A>

No. of Questions= 3

1. The pH of a 0.10 M NH₄Cl solution is 5.13. The hydroxide ion concentration of the solution is:

a) 1.0 x 10^-13 M

b) 7.4 x 10^-6 M

c) 1.3 x 10^-5 M

d) 1.3 x 10^-9 M

e) none of these

2. The hydronium ion concentration of a 0.010 M acetic acid solution is 4 x 10^-4 M. The pH of the solution is:

a) 2.0

b) 4.0

c) 4.2

d) 4.7

e) 3.4

3. A solution which is formed by combining 200.0 mL of 0.15 M HCl with 300.0 mL of 0.090 M NaOH has a [OH^-1] concentration of:

a) 1.7 x 10^-12 M

b) 3.3 x 10^-12 M

c) 1.0 x 10^-7 M

d) 0.0030

e) 0.030

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1.	The pH of a 0.10 M NH₄Cl solution is 5.13. The hydroxide ion concentration of the solution is:

	a)	1.0 x 10^-13 M
	b)	7.4 x 10^-6 M
	c)	1.3 x 10^-5 M
	d)	1.3 x 10^-9 M
	e)	none of these


2.	The hydronium ion concentration of a 0.010 M acetic acid solution is 4 x 10^-4 M. The pH of the solution is:

	a)	2.0
	b)	4.0
	c)	4.2
	d)	4.7
	e)	3.4


3.	A solution which is formed by combining 200.0 mL of 0.15 M HCl with 300.0 mL of 0.090 M NaOH has a [OH^-1] concentration of:

	a)	1.7 x 10^-12 M
	b)	3.3 x 10^-12 M
	c)	1.0 x 10^-7 M
	d)	0.0030
	e)	0.030