A salt water solution is 3.0%(w/w). How much of salt is there in a sample that weighs 250 g?
A) 1.2 g
B) 1.5 g
C) 3.0 g
D) 7.5 g

Name: A salt water solution is 3.0%(w/w). How much of salt is there in a sample that weighs 250 g? A) 1.2 g B) 1.5 g C) 3.0 g D) 7.5 g
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Question

Quizplus · Accepted Answer

A 3.0% (w/w) salt solution means that there are 3 grams of salt in every 100 grams of solution. Therefore, in a 250 g sample, there would be $250 g \times \frac{3 g}{100 g} = 7.5 g$ of salt.

A Salt Water Solution Is 3