Question

A solution contains 35g of common salt in 300g of water. Calculate the concentration of solution

Answer 1

10.448% (w/w) is the concentration of salt

Answer 2

Answer:The concentration of solution is 10.4 in terms of weight by weight percentage.

Explanation:  

$\text{percentage by mass}}=\frac{\text {mass of solute}}{\text {mass of solute+mass of solvent}}\times 100\%$

mass of solute (common salt) = 35 g

mass of solvent (water) = 300 g

mass of solution = mass of solute (common salt) + mass of solvent (water)= 35+300=335 g

$\text{percentage by mass}}=\frac{35}{335}\times 100\%=10.4\%$