1.

What volume of hydrogen gas at 273K and 1atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen ?

Answer»

67.2 L
44.8 L
22.4L
89.6 L

SOLUTION :`2BCl_3 + underset(3 xx 22.4 L = 67.2)(3H_2) to underset(2 xx 10.8= 21.6)(2B) + 6HCL`
volume consumed = 67.2


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