Question

The density of titanium metal is 4.51 g/cm3 at 25 ∘C. What mass of titanium displaces 64.2 mL of water at 25 ∘C?

Answer 1

1 ml of water is 1 cm³

$V_{displased} = 64.2 cm^3$

Density $ρ = \frac{m}{V}$

$m = ρ\times V$

$m = 4.51\frac{g}{cm^3} \times 64.2 cm^3= 289.54 g$

Answer: 289.54 g