Ionic EquilibriumHard
Question
10 mL, of a strong acid solution of pH = 2.000 are mixed with 990 mL of another strong acid solution of pH = 4.000. The pH of the resulting solution will be:
Options
A.4.002
B.4.000
C.4.200
D.3.7
Solution
[H+] after mixing = 
= 1.99 × 10-4.
∴ pH = 4 - 0.3 = 3.7
= 1.99 × 10-4.∴ pH = 4 - 0.3 = 3.7
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