Define density and relative density. If the relative density of aluminum is $2.7$ and the density of water is $1000 \frac{k g}{m^{3}}$ , what is the density of aluminum in an SI unit.

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Solution

Definition of density:- The density of a substance is defined as the mass of a unit volume of the substance.
Definition of relative density:- Relative density of a substance is defined as the ratio of the density of the substance to the density of water under similar conditions.
$S t e p 1 : - G i v e n d a t a : - R e l a t i v e d e n s i t y = 2.7 d e n s i t y o f w a t e r = 1000 \frac{k g}{m^{3}} S t e p 2 : - F o r m u l a \Rightarrow R e l a t i v e d e n s i t y = \frac{d e n s i t y o f s u b s \tan c e}{d e n s i t y o f w a t e r} S t e p 3 : - S o l u t i o n, \Rightarrow 2.7 = \frac{d e n s i t y o f a l u m i n i u m}{1000} \Rightarrow d e n s i t y o f a l u m i n i u m = 2.7 \times 1000 \Rightarrow d e n s i t y o f a l u m i n i u m = 2700 \frac{k g}{m^{3}} S t e p 4 : - H e n c e, t h e d e n s i t y o f a l u m i n i u m i s f o u n d t o b e 2700 \frac{k g}{m^{3}}$

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Define density and relative density. If the relative density of aluminum is 2.7 and the density of water is1000kgm3, what is the density of aluminum in an SI unit.

Define density and relative density. If the relative density of aluminum is $2.7$ and the density of water is $1000 \frac{k g}{m^{3}}$ , what is the density of aluminum in an SI unit.