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28-12-2017
Mathematics

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If I had a 2% solution, added 2 ounces to a gallon (128 ounces) What is the final concentration of the solution.

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mathmate mathmate

09-01-2018

A 2% solution of chlorohexidine added to 126 oz of water. The total oz 128.

Solute: chlorohexidine, 2%=0.02
solvent: water (0%)

Concentration, C, volume V
CV=c1v1+c2v1
128C=0.02*2 + 0.00*126 = 0.04

Concentration
C=0.04/128 = 0.0003125 = 0.03125%

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