1.

How much oxygen is required for complete combustion of 560 g of ethene?

Answer»

6.4 kg
1.92 Kg
2.8 kg
9.6 kg

Solution :`underset(28G)(C_2H_4)+underset(3xx32=96g)(3O_2) to 2CO_2 + 2H_2O`
28 G of `C_2H_4` REQUIRES 96g of `O_2`
560 g of `C_2H_4` requires `96/28xx560`
=1920g or 1.92kg of `O_2`


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