The density of lead is 11.3 g/mL. What is the mass of 45 mL of the metal?

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Answer 1 · 2018-06-08T23:07:00

508.5 g

$ρ = \frac{m}{v}$ $rho=m/v$

$ρ \cdot v = m$ $rho*v=m$

$11.3 \frac{g}{m L} \cdot 45 m L = 508.5 g$ $11.3 g/(mL)*45mL=508.5g$

Answer 2 · 2018-06-09T00:45:29

$Mass = 508.5 g$ $"Mass" = 508.5g$

$Density = \frac{Mass}{Volume}$ $"Density" = "Mass"/"Volume"$

$Mass = Density \times Volume$ $"Mass" = "Density" xx "Volume"$

Given;

$Density = \frac{11.3 g}{m L}$ $"Density" = (11.3g)/(mL)$

$Mass = 45 m L$ $"Mass" = 45mL$

Plugging in the values..

$"Mass" = (11.3g)/cancel(mL) xx 45cancel(mL)$

$"Mass" = 11.3g xx 45$

$"Mass" = 508.5g$