Question

The molarity of a solution prepared by dissolving 15.0 g of nacl in 1000 ml water is?

Answer 1

Answer:

Molarity of NaCl Solution = 0.256 M

Explanation:

We Have :-

Weight of NaCl = 15g

Volume of water = 1000mL

To Find :-

Molarity of solution

Formula Used :-

$Molarity=\frac{Number\ of\ moles\ solute}{Volume\ of\ solution(L)} \\\\Moles=\frac{Mass}{Molar\ Mass}$

Solution :-

Molar Mass of NaCl = 58.44 g/mol

$Moles=\frac{15}{58.44}\\ \\= 0.256 mol\\\\1000 mL = 1 L\\\\Molarity = \frac{0.256}{1} \\\\= 0.256 M$

Molarity of NaCl solution is 0.256 M