Question

(a) A solution is prepared by dissolving 15g of sodium chloride in 200g of
H2O.What is the mass by mass percent age of NaCl in this solution?​

Answer 1

Answer:

Explanation:

Mass of solute (NaCl) = 15g

Mass of solvent (H2O) = 200g

Mass of solution = 200+ 15

= 215g

Mass percentage of NaCl= Mass of Nacl÷Mass of solution× 100

=15÷215×100

=6.97

=7% approx