Concentration of H+ (aq) ions in a solution is 10^-11 moles/litre. Calculate its pH value. State the action of (i) methyl orange , (ii) phenolphthalein on this solution.
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Answer: pH=11
i)Yellow
ii)Pink
Step by Step Explanation:
pH = - log([H+])
[H+] = 10^-11 M
pH = - log(10^-11)
pH = - (-11).log(10)
pH = - (-11).1 = 11 [since , log10=1]
Because pH = 11 (7 ≤ pH ≤ 14) the solution is basic in nature..
i) Turns Yellow in Color
ii) Turns Pink in Color
I hope the answer was up to ur satisfaction..
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