Question

composition by mass of a salt solution?
A. 20%
C. 10%
B. 15%
D. 100%
5. What is the concentration (%MN) of the solution that contains 20.0g NaCl in 800.0 mL solution?
A. 5.00 %
C. 0.200 %
B.2.00 %
D. 2.50 %
following nerfume last longer?
Parfum (EDP) - (10-20%)​

Answer 1

Answer:

Thanks for free points

Answer 2

Answer:

4.(a)20%

5.(d)2.50%

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