Question

1 The density of gold is 19.3 g/cm3 A gold bar has volume 150 cm3 Work out the mass of the gold bar.

Answer 1

Step-by-step explanation:

Given that density of gold is 19.3 g/cm³

Mass given = 0.715 kg = 715 g

Now, we know that density = mass/volume

So,19.3 = 715/volume

⇒ volume = 715/19.3

⇒ volume = 37.047 cm³ (approx)

Now given that the sample of gold is in the shape of cube. We know that volume of a cube = a³ where a is the side, or edge.

Therefore, 37.047 cm³ = a³

⇒ a = ∛37.047

⇒ a = 3.3336 cm (approx)

Answer 2

Answer:

2895 gram

Step-by-step explanation:

hopefully it is the right answer