Question

. How much of a 30% solution would you need to make 50 mL of a 2% solution?

Answer 1

1.2mL will be needed to make 50 mL of a 2% solution

Ratio and proportions

Ratio are written in form of fractions.

If  50mL is required for a 2% solution, hence;

50% = 2mL

0.05 = 2mL

In order to determine the required mL for a 30% solution, we will have;

30% =x

0.03 = x

Find the ratios

0.5/0.3 = 2/x

Cross multiply

0.5x = 2(0.03)
0.5x = 0.6
x = 0.6/0.5

x = 1.2mL

Therefore 1.2mL will be needed to make 50 mL of a 2% solution

learn more on ratio and proportion here: brainly.com/question/12024093

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