You add 50 ml of water to 150 ml of a 6% solution. What is the new concentration?
a. 3.0%
b. 4.5%
c. 7.5%
d. 12.0%
ANS: B
If 50 ml of water is added to 150 ml of a 6% (0.03) solution, the new concentration is calculated by rearranging the dilution equation to find C2.
Health Professions
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