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StoichiometryMCQ

Diborane, B2H6, can be prepared by the reaction; 3NaBH4 + 4BF3 → 3NaBF4 + 2B2H6 If this reaction hasStoichiometry Chemistry Question

Question

Diborane, B2H6, can be prepared by the reaction;
3NaBH4 + 4BF3 → 3NaBF4 + 2B2H6
If this reaction has a 70 percent yield, how many moles of NaBH4 should be used with excess BF3 in order to obtain 0.200 mol of B2H6?

A.

0.200 mol

B.

0.210 mol

C.

0.300 mol

D.

0.429 mol

✓ Correct
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