Question

An aqueous solution has 20 g of sodium chloride in 180 g of water.
What is mass % of sodium chloride in the solution?​

Answer 1

Mass of solute(salt) = 20g

Mass of solvent (water) = 180g

Mass of solution = 20+180= 200g

Concentration = mass of solute/mass of solution x 100

=20 x 100/ 200 = 20/100 = 20%…

20% is the answer

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