how many moles of h3bo3 would be needed to make 3.50 moles of na2b4o7?

2017-11-01 12:57 pm

回答 (1)

2017-11-01 1:01 pm

4H₃BO₃ + 2NaOH → Na₂B₄O₇ + 7H₂O
Mole ratio H₃BO₃ : Na₂B₄O₇ = 4 : 1

No. of moles of H₃BO₃ = (3.50 mol) × (1/4) = 0.875 mol

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