If a 0.24 g sample is burnt in air to produce 0.22 g of CO2, what is the percent carbon in the sample ?
Practice this Stoichiometry question from Engineering Entrance Exam.
Question Details
Chemistry
Stoichiometry
Engineering Entrance Exam
Question
If a 0.24 g sample is burnt in air to produce 0.22 g of CO2, what is the percent carbon in the sample ?
Solution
C + O2 → CO2
Weight of carbon \( = \frac{{12 \times 0.22}}{{44}}\) = 0.06;
% purity of carbon \( = \frac{{0.06 \times 100}}{{0.24}}\) = 25