222k views
5 votes
What is the percent by mass of carbon in c10 h14 n2?

User LAS
by
7.5k points

2 Answers

5 votes

took the test and its 74.02% actually...

User Ercan
by
8.3k points
7 votes
C10H14N2
the relative formula masses:
C10 = (12x10) = 120
H14 = (14x1) = 14
N2 = (14x2) = 28

%composition of carbon = 100 x (14 + 28 / 120) = 0.35
%composition of carbon = 35%
hope that helps
User Martin Kouba
by
7.4k points