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The F- concentration of a solution was determined by measurements with a liquid-membrane electrode. The electrode...

The F- concentration of a solution was determined by measurements with a liquid-membrane electrode. The electrode system developed a potential of 0.5021 V when immersed in 25.00 mL of the sample, and 0.3691 V after the addition of 2.00 mL of M . Calculate pF for the sample.

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