A student calculated the number of moles of carbon dioxide present in a 100.0 g

sample of a gaseous mixture. If the student determined that there are 0.30 moles of

carbon dioxide present in the sample, what is the percent composition of carbon

dioxide in the sample?

Question

Beatrice

Chemistry

15 April, 12:13

A student calculated the number of moles of carbon dioxide present in a 100.0 g

sample of a gaseous mixture. If the student determined that there are 0.30 moles of

carbon dioxide present in the sample, what is the percent composition of carbon

dioxide in the sample?

+3

Answers (1)

Know the Answer?

Barton · Answer 1

Answer: 13.2%

Explanation:

Mass of the sample = 100g

MM of CO2 = 12 + (16 x 2) = 44g/mol

Number of mole of CO2 present in the sample = 0.3

Mass conc. Of CO2 present = 0.3 x 44 = 13.2g

Percentage of CO2 in the sample = (13.2 / 100) x 100 = 13.2%

A student calculated the number of moles of carbon dioxide present in a 100.0 gsample of a gaseous mixture. If the student determined that there are 0.30 moles ofcarbon dioxide present in the sample, what is the percent composition of carbondioxide in the sample?

A student calculated the number of moles of carbon dioxide present in a 100.0 g

sample of a gaseous mixture. If the student determined that there are 0.30 moles of

carbon dioxide present in the sample, what is the percent composition of carbon

dioxide in the sample?