WBJEE · Chemistry · Some Basic Concepts of Chemistry
\(63 \mathrm{~g}\) of a compound (Mol. Wt. \(=126)\) was dissolved in \(500 \mathrm{~g}\) distilled water. The density of the resultant solution as \(1.126 \mathrm{~g} / \mathrm{ml}\). The molarity of the solution is
- A \(1.25 \mathrm{~M}\)
- B \(1.0 \mathrm{~M}\)
- C \(0.75 \mathrm{~M}\)
- D \(1.1 \mathrm{~M}\)
Answer & Solution
Correct Answer
(B) \(1.0 \mathrm{~M}\)
Step-by-step Solution
Detailed explanation
Hint : Mass of compound (solute) \(=63 \mathrm{~g}\) Mole of compound \(=\frac{63}{126}=\frac{1}{2}\) mole \(\begin{aligned} \text{Mass of solution}& =\text { Mass of solute }+ \text { Mass of solvent } \\ & =63+500 \\ & =563 \mathrm{~g} \end{aligned}\) Volume of solution…
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