Question

Sample of ethane (C2H6) was combusted completely and the water that formed has a mass of 1.61 grams. How much ethane, in grams, was in the sample?

Answer 1

Answer:

Balanced Eqn

2C2H6 + 7O2 = 4CO2 + 6H2O

From the balanced equation

2((2*12)+(1*6)) of Ethane gave 6((1*2)+16)) of water

60g of Ethane. >. 108g. Of water

Xg > 1.61

X= 1.61*60/108

X= 0.89g

Answer 2

Explanation:

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