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HOw much of a 0.075M/L HCl solution is needed to make 800ml at a PH of 5.0

 

6 years ago

Answered By Naim S

This is a dilution process where the stock solution (high concentartion) is used to prepare diluted ones.

The resulting solution has a pH =5 then anti log pH results in [H3O+] = 1.0x10-5 M

Dilution means number of moles of solute is the same before and after dilution

So    CxV = C'x V' 

0.075 x V = 1.0x10-5 x 800ml

V= 0.10666 = 0.11 ml are needed for this preparation.