What volume of gold would be equal in mass to a piece of copper with a volume of 101 ml? the density of gold is 19.3 g/ml; the density of copper is 8.96 g/ml?

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Chemistry

Sandra Davis

17 December, 10:13

What volume of gold would be equal in mass to a piece of copper with a volume of 101 ml? the density of gold is 19.3 g/ml; the density of copper is 8.96 g/ml?

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Answer is: volume of gold equal in mass to a piece of copper is 46,89 ml.

d (Cu) = 8,96 g/ml.

V (Cu) = 101 ml.

d (Au) = 19,3 g/mol.

V (Au) = ?.

m (Cu) = d (Cu) · V (Cu)

m (Cu) = 8,96 g/ml · 101 ml

m (Cu) = 905 g.

m (Au) = m (Cu) = 905 g.

V (Au) = m (Au) : d (Au)

V (Au) = 905 g : 19,3 g/ml.

V (Au) = 46,89 ml.