pH review

pH review

By David Boice

​Some text here about the topic of discussion.

​pH calculation road map

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H⁺ + H₂O = H₃O⁺

​

H⁺ and H₃O⁺

are interchangable​

​

Multiple Choice

For a solution, pH + pOH =

• 7

• 1.0 x 10^-14

• -log (1.0 x 10 ^-14)

• 14

Multiple Choice

If the pH of a solution is 4.0 what is the pOH?

• 4.0

• 1.0 x 10 ^-4

• 10

• Cannot be determined

Multiple Choice

If the [H₃O⁺] of a solution is 1 x 10^-3 M, the pH is

• 11

• 3

• -3

• 1

Multiple Choice

If the pH of a solution is 8 the [H₃O⁺] is

• 1.0 x 10⁶ M

• 1.0 x 10⁸ M

• 8.0 x 10¹ M

• 1.0 x 10^-8 M

Multiple Choice

If the [OH^-] of a solution is 2.7 x 10^-4 M, the pOH of the solution is

• 10.44

• 3.57

• 1.00

• -4.43

Multiple Choice

If the [H₃O⁺] of a solution is 9.3 x 10^-3 M, the pOH of the solution will be

• 2.03

• 11.97

• 1.02

• 12.98

Multiple Choice

Oranges have a [H₃O⁺] of 1.7 x 10^-2 M. Their pOH is

• 1.77

• 10.91

• 12.23

• 3.09

Multiple Choice

 Name the acid: HC₂H₃O₂

• Acetic Acid

• Hydrogen Acetate

• Hydrogen Dicarbon Trihydrogen Dioxygen

• Acetous Acid

Multiple Choice

at is the formula for Hydrosulfuric Acid?

• H₂(SO₃)

• H₂(SO₂)

• H₂S

• H₂(SO₄)

Multiple Choice

Name the acid: H₃PO₃

• hydrophosphoric acid

• phosphorous acid

• phosphoric acid

• phosphoric hydroxide

Multiple Choice

The "Polyatomic Ion" chart is needed to name:

• binary acids

• oxyacids

• acid washed jeans

• all acids

Naming Bases

There is no special system for naming bases. Since they all contain the OH^-- anion, names of bases end in hydroxide. The cation is simply named first.​​

Al⁺³ + OH^- = Al(OH)₃ ​

Balance the charge by adding one OH for each + charge on the cation

​

Aluminum Hydroxide​