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WorksheetsAcids and Bases
Total questions: 20
Worksheet time: 24mins
A substance is found to have the following characteristics:
Very bitter taste
Feels slippery to the touch
Produces OH- ions when dissolved in water
In what category would the substance be classified?
acid
base
enzyme
fatty acid
HF is...
an acid
a base
a salt
an ionic compound
KOH is ...
an acid
a base
a salt
an ionic compound
The pH of a solution is 2.0. What is the [OH-] concentration?
1x10-12M
12 M
1x10-2M
2 M
What is the pH of a solution where the [H+] is 1.0 x 10-11?
11
13
14
1
What is the pOH of a 1 x 10-8 M solution of HNO3?
8
6
7
9
What is the [H+] if the pH is 4.0?
1.0 x 10-10 M
1.0 x 10-4 M
1.0 x 10-14 M
1.0 x 10-7 M
Phenolophalein turns from clear to pink when the pH turns
acidic
basic
saline
ionic
If a solution has a [H+] of 9.3x10-11, what is the pH?
10.0
4.0
3.5
8.2
If a solution has a [OH-] of 2.3x10-4, it must be a(n)...
Acid
Base
Neutral
What is the [OH-] if the pH is 4.900?
7.94 x 10-10 M
1.00 x 10-4 M
7.94 x 10-14 M
4.90 x 10-10 M
What is the hydronium ion concentration of 4.0 M H2SO4?
4.0 M
8.0 M
1.0 x 10-4 M
2.5 x 10-15 M
A solution of Ca(OH)2 is 1.0 x 10-5 M. What is the hydronium ion concentration?
1.0 x 10-5 M
1.0 x 10-9 M
5.0 x 10-10 M
2.0 x 10-5 M
The Kw at room temperature (25 degrees C) is equal to 1.0 x 10-14. It can also be defined as:
the pH and pOH of a solution
the product of the hydronium ion and the hydroxide ion concentrations
-log [hydronium ion]
antilog -pH
