Chemistry question any help would be appreciated :)

Question

C2H4 + 3 O2 ----> 2 CO2 + 2 H2O

If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced?

Group of answer choices

A) 141.4 g CO2

B) 178.9 g CO2

C) 78.6 g CO2

D) 456.7 g CO2

Answer 1

Looking at the equation ethene forms two moles of carbon dioxide(1:2).

Using the mass of ethene we find the moles of ethene.45gram/28gmol-1 =1.607 moles

This is then used to find the moles of carbon dioxide formed. The mole ration of Ethene to carbon dioxide is 1;2 so 1.607moles of ethene produces 3.214 moles of carbon dioxide.

Using moles times RMM(44gmol-1) you get the mass formed.

3.214moles*44g/mol=141.42g of carbon dioxide