Answer to Question #166011 in General Chemistry for sameera

General Chemistry

Question #166011

A chemist weighed out 69.7g of gallium. Calculate the number of moles of gallium she weighed out

Expert's answer

Standard atomic weight (Ar) of Gallium = 69.7 g/mol

n(Ga)=m/Ar=69.7/69.7=1 mol;

Answer: The chemist weighed out 1 mol of gallium

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