Question

The molarity of a solution is M. To decrease the molarity of this solution to M/2, then
a) Weight of the solute to be doubled
b) Weight of the solvent to be doubled
c) Volume of the solvent to be doubled
d) Volume of the solution to be doubled

Answer 1

Answer:

d)Volume of the solution to be doubled

Explanation:

Molarity= moles of solute/volume of solution.

Molarity is inversely proportional to the molarity.When volume of solution doubled molarity will be halved.

Answer 2

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(d) weight of solution to be doubled$</p><p>Since molarity =\frac{moles}{volume of solution}$

$\blue{hence\: due\: to\: inverse\: relation}\\ [tex]\blue{ if \:volume\: is doubled\: Molarity\: is\: halved }$

$<marquee direction="left">$ Hope it helps