What is the pH of a 1% sulfuric acid solution?

[Mik0]

Can anyone tell me what a 1% (mass or volume) sulfuric acid solution is in moles? I want to find out the pH of a 1% (mass or volume) sulfuric acid solution?

 

[Borek]

You will need solution density for conversion. You may either assume solution is diluted enough for the density to be just 1 g/mL, or check density in tables.

http://www.chembuddy.com/?left=concentration&right=toc

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[spectre101]

Correct me if I'm wrong but...
I think you can assume you have a solution 1L in volume. If 1% of that solution is sulfuric acid, you can find the molar concentration. Sulfuric acid is a strong acid so assume 100% dissociation of H+. Then just use the formula pH = -log([H+]) to get the pH.

 

[Borek]

Sulfuric acid is a strong acid so assume 100% dissociation of H+.

First dissociation step is strong, but the second is relatively weak. In this particular case about 76% is in the HSO₄^- form.

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