How many moles of HCl is in 200 mL of hydrochloric acid solution that has a pH o

Chemistry
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How many moles of HCl is in 200 mL of hydrochloric acid solution that has a pH of 1?

Nov 24th, 2014

PH of 1 means the [H+]  concentration is 1.0 x 10-1

Molar concentration is mols HCl in 1000ml solution . so 0.1 = 0.1 mole in 1000 ml.

This is equal to 0.1/1000 = x/ 200

Therefore x = 0.1 x 200 /1000

                 x= 0.1/5 = .02 mol HCl

Answer: 0.02 mole HCl

Nov 24th, 2014

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