Question

18 gram of sodium chloride is dissolved in 82 gram of water calculate the concentration of solution in term of marble mass percentage​

Answer 1

Explanation:

molar mass of NACL = 56.5

given mass = 18gm

so no. of moles is 18 / 56.5 = 0.3

so concentration is 0.3 / 82 = 0.0036