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estrellaalcantar16
02.12.2019 •
Chemistry
If 21.39 g acetylene is allowed to completely react with oxygen, how many grams of o2 are reacted? (the molar mass of acetylene is 26.04 g/mol)2 c2h2(g) + 5 o2(g) → 4 co2(g) + 2 h2o(g)acetylenebe sure to use the p
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Ответ:
65.712 grams of oxygen has reacted.
Explanation:
Mass of acetylene = 21.39 g
Moles of acetylene =![\frac{21.39 g}{26.04 g/mol}=0.8214 mol](/tpl/images/0399/8971/eeda1.png)
According to reaction , 2 moles of acetylene reacts with 5 moles of oxygen gas.
Then 0.8214 moles of oxygen gas will react with :
Mass of 2.0535 moles of oxygen gas :
2.0535 mol × 32 g/mol = 65.712 g
65.712 grams of oxygen has reacted.
Ответ: