Answer to Question #113872 in General Chemistry for SOPHIA Ann EMERT

Question #113872

How many moles are present in the 1.23-g sample of copper?

Expert's answer

n=m/M , n - chemical amount of substance (mol); m - mass of substance (g); M - molar mass of substance (g/mol).

M(Cu)=63,5g/mol

n=1,23g/63,5g/mol=0,02mol

Answer:0,02mol

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