What is the pH of 2×10−8MHCl solution ?
(Take log(11)=1.04)
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Q4
If x=(0.15)20, then find the mantissa of the logarithm of x to the base 10.
Assume log102=0.301 and log310=0.477.
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Q5
50mL of 0.05MNa2CO3 is titrated against 0.1MHCl. On adding 40mL of HCl, pH of the solution will be [Given for H2CO3,pKa1=6.35;pKa2=10.33;log3=0.477,log2=0.30]