pH & Hydrogen Ions (AQA A-Level Chemistry): Quizzes

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pH & Hydrogen Ions
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What type of scale is the pH scale?

Logarithmic

What change in [H+][\text{H}^+] occurs for each whole number change on the pH scale?

Tenfold change

Which formula defines pH?

pH=−log⁡10[H+]\text{pH} = -\log_{10} [\text{H}^+]

Which formula calculates [H+][\text{H}^+] from pH?

[H+]=10−pH[\text{H}^+] = 10^{-\text{pH}}

What is the pH of a neutral solution at 25°C?

7.00

What pH range indicates an acidic solution?

pH < 7.00

How do strong acids behave in solution?

They fully dissociate

How many H+\text{H}^+ ions does H2SO4\text{H}_2\text{SO}_4 release per molecule?

Two

What is the pH of a 1 mol dm−3^{-3} H2SO4\text{H}_2\text{SO}_4 solution?

-0.30

What is the H2SO4\text{H}_2\text{SO}_4 concentration for a solution with pH 1.00?

0.05 mol dm−3^{-3}

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