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what volume of hydrogen gas , at 273 K ...

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

A

89.6 L

B

67.2 L

C

44.8 L

D

22.4 L

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The correct Answer is:
B
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