How many grams of ethanol (specific gravity 0.80)should be added to 5 grams of chloroform (specific gravity 1.50)if the resulting mixture is to have a specific gravity of 1.20?
A)2.0 g
B)2.4 g
C)1.8 g
D)4.4 g
E)1.6 g

Question

Quizplus · Accepted Answer

Specific gravity of the mixture = (Mass of chloroform * Specific gravity of chloroform + Mass of ethanol * Specific gravity of ethanol) / (Mass of chloroform + Mass of ethanol)1.20 = (5 * 1.50 + Mass of ethanol * 0.80) / (5 + Mass of ethanol)Mass of ethanol = 2.0 g

How Many Grams of Ethanol (Specific Gravity 0