WorksheetsMolarity/ pH Test Titration
Total questions: 29
Worksheet time: 15mins
Name
Class
Date
1.
Molarity is the number of moles of solute dissolved per liter of solution.
a)
True
b)
False
2.
An aqueous solution of acids causes pH paper to turn different shades of green or blue (pH 8-12).
a)
True
b)
False
3.
An acidic solution contains more hydroxide ions than hydrogen ions.
a)
True
b)
False
4.
Hydrogen (H+) ions are in a higher concentration in bases.
a)
True
b)
False
5.
The relative amounts of hydrogen and hydroxide ions determine whether an aqueous solution is acidic, basic or neutral.
a)
True
b)
False
6.
A neutral solution contains more hydroxide ions than hydrogen ions.
a)
True
b)
False
7.
A basic solution contains more _____ ions than hydrogen.
a)
oxygen
b)
nitrogen
c)
hydroxide
d)
sulfide
8.
What is the pH of blood, given the hydrogen ion concentration is 4.0 x 10^-8 M?
a)
7.0
b)
7.4
c)
8.0
d)
8.4
9.
What is the pH of 0.45 M of H2SO4?
a)
.046
b)
.035
c)
.45
d)
.9
10.
The pH scale allows scientists to define the acidity of a substance on a scale of _____.
a)
0-7
b)
0-14
c)
1-7
d)
1-14
11.
Calculate the pH of 0.020 M HCl.
a)
8.4
b)
1.7
c)
2.5
d)
12.3
12.
Calculate the concentration of H+ ions in milk (pH=6.5)
a)
4.3 x 10^-3
b)
1.3 x 10^-7
c)
3.16 x 10^-7
d)
2.5 x 10^-5
13.
In the lab, a chemist adds 36 grams of sodium chloride (NaCl) to 3L of water. What is the molarity of the solution?
a)
12 M
b)
0.6 M
c)
19.5 M
d)
0.2 M
14.
Given that the pH of a substance is 9, what is the pOH of the same substance?
a)
7
b)
6
c)
5
d)
4
15.
If the pH of a substance is found to be 1, the substance would be a...
a)
strong base
b)
weak base
c)
weak acid
d)
strong acid
e)
neutral
16.
If the pH of a substance is found to be 13, the substance would be a...
a)
strong base
b)
weak base
c)
weak acid
d)
strong acid
e)
neutral
17.
If the pH of a substance is found to be 8, the substance would be a...
a)
strong base
b)
weak base
c)
weak acid
d)
strong acid
e)
neutral
18.
If the pH of a substance is found to be 7, the substance would be a...
a)
strong base
b)
weak base
c)
weak acid
d)
strong acid
e)
neutral
19.
How much 5 M nitric acid (HNO3), in mL, is needed to make 225 mL of 1 M HNO3?
a)
105 mL
b)
45 mL
c)
225 mL
d)
1125 mL
20.
What is the volume of a 2 M solution made of 150 g MgO?
a)
1.86 L
b)
75 L
c)
7.44 L
d)
4.28 L
21.
What is the molarity of 0.4L of 2 mol HCl?
a)
0.2 M
b)
0.8 M
c)
5 M
d)
2.5 M
22.
What is the molarity of a 2L liquid that has 5 moles of solute?
a)
0.4 M
b)
0.8 M
c)
2.5 M
d)
10 M
23.
If a liquid has the concentration of [H+] = 9.6 x 10^-7 M, it is a(n) _____.
a)
acid
b)
base
c)
neutral solution
24.
If a liquid has the concentration of [H+] = 8.5 x 10^-9 M, it is a(n) _____.
a)
acid
b)
base
c)
neutral solution
25.
If a solution has a pH of 7, what is it considered?
a)
Acid
b)
Base
c)
Neutral
26.
What is the pH, given that the pOH of a substance is 4?
a)
5
b)
7
c)
10
d)
14
27.
A titration of 30.0 mL of NaOH with 0.300 M HCl required 20.0 mL of the acid. What is the molarity of NaOH?
a)
0.2
b)
60
c)
.4
d)
.1
28.
If you want to know the pH of an unknown liquid, what would you want to do?
a)
Test it with a pH strip
b)
Drink it
c)
Pour it on the ground
d)
Splash the liquid around with your hands
29.
You are given a solution containing HCl with 2.3 moles in a 4.6 Liters of solution.
1. What is the Molarity?
2. What is the [H] concentration?
3. What is the [OH] concentration?
4. What is pH?
5. What is pOH?
Please Label what each answer represents.
4 lines
100 %
