Question

Percent ionization for a weak acid (HA) is determined by the following formula: Percent ionization=[HA] ionized[HA]...

Percent ionization for a weak acid (HA) is determined by the following formula:

Percent ionization=[HA] ionized[HA] initial×100%

For strong acids, ionization is nearly complete (100%) at most concentrations. However, for weak acids, the percent ionization changes significantly with concentration. The more diluted the acid is, the greater percent ionization.

A certain weak acid, HA, has a Ka value of 9.4×10?7.

Part A

Calculate the percent ionization of HA in a 0.10 M solution.

Part B

Calculate the percent ionization of HA in a 0.010 M solution.

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