Question

57.9 g of gold has a volume of 3 cm³ what is the density of gold in g/ centimeters cubed

Answer 1

The answer is: " 20 g/cm³ " .
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Density = mass (g) per unit volume (cm³) ;

or: D = m / v ;

D = 57.9 g / 3 cm³ = (57.9 / 3) g / cm³ = 19.3 g / cm³ ;
→ round to "1 significant figure;
to get: 20 g / cm³
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Answer 2

D=m÷v

so density would be 57.9 ÷ 3 = 19.3 g/cm³