The balanced equation for burning octane is: 2 C8H18(g) + 25 O2(g) ? 18 H2O(g) + 16 CO2(g). What weight of oxygen is required to completely burn 19.8 g of octane?
A) 28.1 g
B) 34.7
C) 69.5
D) 139 g
C
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