WorksheetspH and concentration
Total questions: 13
Worksheet time: 25mins
What is the pH of a solution that contains 25 grams of HCl dissolved in 1.5 L of water?
0.45
0.34
-1.22
1.22
What is the pH of a solution that contains 1.32 grams of Ca(OH)2 dissolved in 750 mL of water.
12.677
1.323
13.75
1.27
If a solution has a [OH+] concentration of 4.5 x 10-7 M, is this an acidic or basic solution?
Highly acidic
Slightly acidic
Highly basic
Slightly basic
What is the concentration of a solution of Ca(OH)2 with a pH of 12?
0.01
0.005
0.02
1E-12
Determine the pH of a 4.3 x 10-4 M NaOH solution.
11.5
2.53
Determine the concentration of a HNO3 solution with a pH of 2.5.
0.0032
0.0034
0.034
Substance that form hidronium ions in aquous solutions
Acid according to Arrhenius
Acid according to Bronsted-Lowry
Base according to Arrhenius
Base according to Bronsted-Lowry
Substance that accepts a hidronium ion from another subtance
Acid according to Arrhenius
Acid according to Bronsted-Lowry
Base according to Arrhenius
Base according to Bronsted-Lowry
What type of subtance is Sodium bicarbonate?
Acid
Neutral
Basic
What type of substance is water?
Acid
Neutra
Basic
Its the negative logarithm of the hidronium ion´s concentration
10-pH
pH
[H+] = 10-pH
[H3O+] = 10-pH
What is the concentration of hidroxide ions in a solution with a pH = 7.65?
2.24x10-8
2.5x10-7
4.47x10-7
1.8x10-8
A 1.26X10-6 M Ba(OH)2 solution is:
Basic (pH=8.4)
Acidic (pH=6.5)
Basic (pH=8.0)
Basic (pH=9.4)
