Ethylene (c2h4 ) reacts with oxygen gas to produce carbon dioxide and water. 45.0 grams of ethylene reacts, how many grams of carbon dioxide gas will be produced?
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Ответ:
mass of carbon-dioxide = 141.43 grams
Explanation:
The balanced equation is written for the reaction to calculate mass of carbon dioxide produced .
C2H4 + O2 → CO2 + H2O
Balanced equation
C2H4 + 3O2 → 2CO2 + 2H2O
Molar mass of C2H4 = 12 × 2 + 4 = 28g
molar mass of CO2 = 12 + 32 = 44g × 2 moles = 88g
28 g of C2H4 produces 88 g of carbon-dioxide
45 g of C2H4 will produce ? gram of carbon-dioxide
cross multiply
mass of carbon-dioxide = (45 × 88)/28
mass of carbon-dioxide = 3960/28
mass of carbon-dioxide = 141.428571429 grams
mass of carbon-dioxide = 141.43 grams
Ответ: