Acids And Bases Worksheet - Michalek, Unit 14 Page 19
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27AP Chemsitry--Michalek
19
Unit 14 Acids and Bases
Worksheet 14.2 pH Scale
Name________________________
-
o
1. Calculate the [OH
] of each of the following solutions at 25
C. Identify each solution as neutral, acidic, or basic.
+
-7
a. [H
] = 1.0 x 10
M
+
-4
b. [H
] = 6.7 x 10
M
+
-11
c. [H
] = 1.9 x 10
M
+
d. [H
] = 2.3M
+
o
2. Calculate the [H
] of each of the following solutions at 25
C. Identify each solution as neutral, acidic, or basic.
-
a. [OH
] = 3.6 M
-
-9
b. [OH
] = 9.7 x 10
M
-
-3
c. [OH
] = 2.2 x 10
M
-
-7
d. [OH
] = 1.0 x 10
M
o
-14
3. At 40
C the value of K
is 2.92 x 10
. Calculate the hydrogen and hydroxide concentration in pure water. What
w
is the pH of pure water? If the hydroxide ion concentration in a solution is 0.10 M what is the pH?
4. The pH of a sample of milk is 6.77. Calculate the pOH and the concentrations of hydroxide and hydrogen ions.
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