Given the density of Au is 19.3 g/cm³,determine the mass of gold in an ingot with the dimensions of
10.0 in × 4.00 in × 3.00 in.

Question

Given the density of Au is 19.3 g/cm³,determine the mass of gold in an ingot with the dimensions of 10.0 in × 4.00 in × 3.00 in.

Quizplus · Accepted Answer

The volume of the ingot is calculated by multiplying its dimensions: 10.0 in × 4.00 in × 3.00 in = 120 in³. Convert this to cm³ (1 in = 2.54 cm), so 120 in³ = 1965.12 cm³. Multiply by the density of gold (19.3 g/cm³) to find the mass: 1965.12 cm³ × 19.3 g/cm³ = 3.80 × 10⁴ g.

Given the Density of Au Is 19