Multiple choice

The concentration of the same aqueous solution of glucose is determined by two students - Sawan and Gautam. Sawan reported the concentration as 20% (w/w) and Gautam reported the concentration as 25% (w/v). If both the concentration are correct, then the density of solution is _____________.

  1. $0.8\ g/ml$
  2. $1.0\ g/ml$
  3. $1.25\ g/ml$
  4. $1.33\ g/ml$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Concentration w/v = (w/w) * density. Given 25% (w/v) = 20% (w/w) * density, density = 25 / 20 = 1.25 g/ml.

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