Answer:
% Carbon tetrachloride = 50.6 %
% isopropenylbenzene = 46.5 %
% 2-ethyltoluene = 2.9%
Explanation:
Step 1: Data given
A mixture contains:
71.1 grams of Carbon tetrachloride (CCl4)
65.4 grams of isopropenylbenzene (C9H10)
4.02 grams of 2-ethyltoluene (C9H12)
Step 2: Calculate total mass
Total mass = mass CCl4 + mass C9H10 + mass C9H12
Totam mass = 71.1g + 65.4g + 4.02g
Total mass = 140.52 grams
Step 3: Calculate % of each component:
% component = (mass component/ total mass) *100%
% Carbon tetrachloride = (71.1 / 140.52) *100 %
% Carbon tetrachloride = 50.6 %
% isopropenylbenzene = (65.4 / 140.52) *100%
% isopropenylbenzene = 46.5 %
% 2-ethyltoluene = (4.02/140.52) *100%
% 2-ethyltoluene = 2.9%
50.6% + 46.5% + 2.9% = 100%
