Question

determine the mass by mass percentage concentration of a 100 g salt solution which contains 20 g salt​

Answer 1

Answer:

Solution:- (B) 20%

As we know that,

mass by mass percent=

Total wt. of salt

Wt. of salt

×100

Given that:-

Weight of salt = 20 g

Total weight of salt = 100 g

∴ mass by mass percent=

100

20

×100=20%

Explanation:

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Answer 2

Answer:

• Mass of salt= 20 Mass of salt solution= 100 g. Mass of percentage=Mass of salt/Mass of salt solution×100 =20/100×100 = 20%