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Stoichiometry
I'm wondering why I always get this simple question wrong. I think the answer given is wrong, can someone please solve it and tell me what they get?
2C2H6 + 7O2 --> 4CO2 and 6H20
1. If 16 grams of O2 react with excess C2H6, how many grams of CO2 will be formed?
2. If 64 grams of O2 react with 45 grams of C2H6, how many grams of CO2 will be formed?
Thanks.
2C2H6 + 7O2 --> 4CO2 and 6H20
1. If 16 grams of O2 react with excess C2H6, how many grams of CO2 will be formed?
2. If 64 grams of O2 react with 45 grams of C2H6, how many grams of CO2 will be formed?
Thanks.
Fahad
I'm wondering why I always get this simple question wrong. I think the answer given is wrong, can someone please solve it and tell me what they get?
2C2H6 + 7O2 --> 4CO2 and 6H20
1. If 16 grams of O2 react with excess C2H6, how many grams of CO2 will be formed?
2. If 64 grams of O2 react with 45 grams of C2H6, how many grams of CO2 will be formed?
Thanks.
2C2H6 + 7O2 --> 4CO2 and 6H20
1. If 16 grams of O2 react with excess C2H6, how many grams of CO2 will be formed?
2. If 64 grams of O2 react with 45 grams of C2H6, how many grams of CO2 will be formed?
Thanks.
1. 16g of O2 = 0.5 moles of O2 => 4/7 * 0.5 moles of CO2 formed = 0.286 mol = 12.6 g of CO2
2. 64g of O2 = 4 moles of O2; 45 g of C2H6 = 1.5 moles of C2H6 => O2 in excess => 4/2 * 1.5 moles of CO2 formed = 3 mol = 132 g of CO2
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