Question

20.6g NaBr is dissolved in 500ml solution whar is the Molarity of resulting solution?

Answer 1

M =w×1000/m × v ..................

Answer 2

Answer: Molarity of resulting solution is  0.4 M.

Explanation:

$molarity=\frac{\text{mass of solute}}{\text{molar mass of solute}\times \text{volume of solution is Liters}}$

$molarity=\frac{\text{mass of NaBr}}{\text{molar mass of NaBr}\times \text{volume of solution is Liters}}=\frac{20.6 g}{103 g/mol\times 0.5 L}=0.4M$

Molarity of resulting solution is  0.4 M.