Chapter 11: Solutions, Prs stice Questions: How much ofa 20% solution would you need to make 30 mL of a 5% solution...

Question

Question

science nursing

Answer 1

Answer #1

C1v1 = c2v2

20% x v1 = 30ml x 5%

V1= 30ml x 5%/20%

V1= 30 ml x 0.05/0.2

= 0.25 x 30 ml

= 7.5 ml

Answer 2

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