Question

An unknown liquid has a mass of 4.25 × 108 mg and a volume of 0.250 m3. what is the density of the liquid in units of g/ml?

Answer 1

Density= mass/volume
             step  one :
  convert  m3  to  ml
1m^3  =1000000ml
0.250m^3 x1000000=250000ml
         
           step  two:  convert  mg   to  g
 1mg=0.001g,  therefore 4.25 x108mg=0.459g
density  is  therefore= 0.459g/250000=1.836 x10^-6g/ml

Answer 2

Density of the liquid in units of g/ml is $1.836 \times 10^{-6} g / \mathrm{ml}$

Explanation:

Density of liquid is the mass of the liquid ids divided by its volume.

Density =$\frac{\text { Mass }}{\text { Volume }}$

Given Mass = 4.25×108 mg

                      = 459mg

                      = 0.459g

        Volume = $0.250 m^{3}$

Therefore, density = $\frac{0.459}{0.250}$

                              =   $1.836 \mathrm{g} / \mathrm{m}^{3}$

converting to $m^{3}$ to ml ($m^{3}$ = 1000000ml)

                              = $1.836 \times 10^{-6} g / \mathrm{ml}$