Answer to Question #56459 in General Chemistry for Swarup patil

General Chemistry

Question #56459

Calculate number of moles in
A)7.85gm Fe (molar mass =56 gm/mol)
B)4.68 mg of Si (molar mass =28.1gm/mol)

Expert's answer

n=m/M

A. n = 7.85g / 56g/mol = 0.14 mol

B. n = 0.00468g / 28.1 g/mol = 0.00017

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