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density = mass/volume = 2g/40cm3 = 0.05g/cm3
Density = Mass/Volume = 200 g / 5 cm3 = 40 gcm-3
density = mass ÷ volume = 890 g ÷ 100 cm³ = 8.9 g/cm³
12.99cm is not a volume
To calculate the mass of the gold bar, you first need to find its volume. The volume of the gold bar is 30 cm x 10 cm x 10 cm = 3000 cubic cm. Next, you multiply the volume by the density of gold (19.3 g/cm³) to find the mass. Therefore, the mass of the gold bar would be 3000 cm³ x 19.3 g/cm³ = 57,900 grams.