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TS EAMCET · Chemistry · Solutions

A \(1.17 \%\) solution of solute \(A\) is isotonic with \(7.2 \%\) solution of glucose. If the molecular weight of solute \(A\) is 58.5, the value of van't Hoff factor, ' \(i\) ' is

  1. A 2
  2. B 3
  3. C 4
  4. D 5
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Answer & Solution

Correct Answer

(A) 2

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Detailed explanation

\(\because\) Molar mass of glucose \((M)=180 \mathrm{~g}\) Molar mass of solute \((A)\), i.e. \(\left(M_A\right)=58.5\) \(\%\) of \(A=1.17 \%\) \(\%\) of glucose \(=7.2 \%\) Also, \(\because \pi(\text { osmotic pressure })=C R T\)…