Answer:
For a: The volume of graphite is [tex]5.02cm^3[/tex]
For b: The volume of bromine is [tex]13.54cm^3[/tex]
Explanation:
To calculate volume of a substance, we use the equation:
[tex]\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}[/tex] ......(1)
Density of graphite = [tex]2.25g/cm^3[/tex]
Mass of graphite = 11.3 g
Putting values in equation 1, we get:
[tex]2.25g/cm^3=\frac{11.3g}{\text{Volume of graphite}}\\\\\text{Volume of graphite}=\frac{11.3g}{2.25g/cm^3}=5.02cm^3[/tex]
Hence, the volume of graphite is [tex]5.02cm^3[/tex]
Density of bromine = [tex]2.928g/cm^3[/tex]
Mass of bromine = 39.657 g
Putting values in equation 1, we get:
[tex]2.928g/cm^3=\frac{39.657g}{\text{Volume of bromine}}\\\\\text{Volume of bromine}=\frac{39.657g}{2.928g/cm^3}=13.54cm^3[/tex]
Hence, the volume of bromine is [tex]13.54cm^3[/tex]
