CUET · CHEMISTRY · PYQ PAPER 2023
A solution of glucose in water is labelled as \(10\%\) w/w, if the density of the solution is \(1.2\) g/ml then the molarity of the solution would be :
- A \(0.33\) M
- B \(0.44\) M
- C \(0.55\) M
- D \(0.66\) M
Answer & Solution
Correct Answer
(D) \(0.66\) M
Step-by-step Solution
Detailed explanation
\(n_{glucose} = \frac{10\text{ g}}{180\text{ g/mol}} = \frac{1}{18}\text{ mol}\) \(V_{solution} = \frac{100\text{ g}}{1.2\text{ g/ml}} = \frac{250}{3}\text{ ml} = \frac{1}{12}\text{ L}\) \(M = \frac{1/18\text{ mol}}{1/12\text{ L}} = \frac{12}{18}\text{ M} = 0.666...\text{ M}\)…
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