Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Depression in freezing point of 0.01 molal aqueous HCOOH solution is 0.02046°C. 1 molal aqueous urea solution freezes at - 1.86°C. Assuming molality equal to molarity, calculate the pH of HCOOH solution.
Text Solution
Verified by ExpertsThe correct answer is:
3
3.00
1.86 = K f (1)
0.02046 = (1 + 
) x 1.86x0.01
[H + ] = C 
= 0.01 x0.1 = 10 -3
so, pH = 3.
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