How many moles of Ba(OH)2 are in 2400 grams of Ba(OH)2?

2018-07-25 9:49 am
A.) 14.59 moles

B.) 15.56 moles

C.) 7.14 x 10−2 moles

D.) 8.43 x 1024 moles

回答 (1)

2018-07-25 9:59 am
✔ 最佳答案
Molar mass of Ba(OH)₂ = (137.3 + 16.0×2 + 1.0×2) g/mol = 171.3 g/mol
No. of moles of Ba(OH)₂ = (2400 g) / (171.3 g/mol) = 14.01 mol

None of the 4 options is the answer.
(The closest answer is A.)
(If the formula is incorrectly written as BaOH, the answer is B.)


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