Question

Q. What is the percentage by, weight of tungsten in W(CH₃)? Given molecular weight of tungsten is 183.84 g/mol.
a)4.3819
b)26.292
11 67.075
d) 28.502
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Answer 1

Answer:

molar mass of W(CH3) = 183.84 + 12 + 1×3 = 198.84 g/mol

mass% of W = (183.84/ 198.84) × 100 = 92.4 %

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