Answer to Question #110776 in Organic Chemistry for Kasakashi

Question #110776
A chemist only has 6. 50 grams of C2H2 and an unlimited supply of oxygen and he
desires to produce as much CO2as possible. If he uses the equation below, how much
oxygen should he add to the reaction?
2C2H2 (g ) + 5O2(g) → 4CO2(g) + 2 H2O(l)
1
Expert's answer
2020-04-19T15:29:48-0400

There is 6.50 g / 26 g/mole = 0.25 moles of C2H2.

According to reaction stoichometry, chemist needs 0.25/2*5 = 0.625 moles of oxygen.

The mass of O2 is 0.625 mole * 32 g/mole = 20 grams of oxygen


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