1. 0.2 g/mL
The relationship between mass, density and volume of an object is
[tex]d=\frac{m}{V}[/tex]
where
d is the density
m is the mass
V is the volume
For the object in this problem, we have
m = 10 g
V = 50 mL
Substituting into the equation,
[tex]d=\frac{10}{50}=0.2 g/mL[/tex]
2. 10 mL
In this exercise we know:
- The density of the object: d = 2 g/mL
- The mass of the object: m = 20 g
Therefore, we can re-arrange the previous equation to find the volume:
[tex]V=\frac{m}{d}[/tex]
And substituting values into the equation, we find
[tex]V=\frac{20}{2}=10 mL[/tex]
