Question

The relative density of lead is 11.3.what is its density in g cm-3 and kg m-3?

Answer 1

Relative density = Density of substance / Density of water
Density of substance = Relative Density × Density of water

In CGS units
Density of lead = 11.3 × 1 g/cm^3 = 11.3 g/cm^3
[∵ Density of water = 1 g/cm^3]

In SI units
Density of lead = 11.3 × 1000 kg/m^3 = 11300 kg/m^3
[∵ Density of water = 1000 kg/m^3]

Answer 2

$\large\red{ANSWER}$

$relative \: density = \frac{density \: of \: substance}{density \: of \: water}$

$density \: of \: water = 1g \: {cm}^{ - 3} or1000kg {m }^{ - 3}$

$11.3 = \frac{density \: \: of \: \: lead}{1} \\ = > density \: of \: lead = 11.3g {cm}^{ - 3}$

$and$

$11.3 = \frac{density \: of \: lead}{1000} \\ = > density \: of \: lead = 11300kg {m}^{ - 3}$

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