16.8k views
0 votes
The amount and the concentration of a salt solution.

User Dagny
by
5.1k points

1 Answer

1 vote

Answer:

28 g

3.4 g

Step-by-step explanation:

These problems only make sense if the percentage is by weight. To find the amount of salt, multiply the amount of solution by the percentage that is salt:

a) (80 g)(35%) = 28 g . . . . weight of salt

__

b) (20 g)(17%) = 3.4 g . . . . weight of salt

_____

Comment on percent

You know that % means /100, so 35% = 35/100 = 0.35.

User Ramsinb
by
5.6k points