Question

a solution is prepared by adding 4g of a substance A to 16 g of water. calculate the mass percent of the solute
a) 10
b) 30
c) 15
d) 20
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Answer 1

Answer:

20

Step-by-step explanation:

4+16=20

4/20×100

2×10

20

Answer 2

Answer

Correct option is A

Mass percent of solute =

mass of solution

mass of solute

×100

Mass of solute = 2 g

Mass of solvent = 18 g

Mass of solution = 20 g

∴ Mass percent of solute =

20

2

×100

=10%

Hence, option A is correct.