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sirisha

how to do this

what is the pH of .0001M H2SO4??

amangem

it is a fundamental problem but kind of tricky

def of pH says that it the -ve log to base 10 of H+ ion conc in mol per lit

now ionisation of H2SO4-------> 2H+ + SO4^2-

thus by stoichiometry 1 mole of acid give 2 moles of H+

thus in .0001mol acid [H+] = 2* .0001

thus pH = 4 - log2

=3.69

arun-rashi

u have 10-4 M H2SO4 Msolution where total hydrogen ion concentration is 2*I0-4 so negative log comes is 4 -LOG 2[.3010].Always remember that acid gives how number of hydrogen ion this multiply with molerity than gives net PH.for example H3PO4 gives 3 Hion so multiply with 3.in case of HCl where Hion is one M and N r similer.

sirisha

ok thanx

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