Question

The liquid 1,2-dibromobenzene has a density of 1.98 g/mL at 20.0°C. If a 26.7 mL sample of this compound is provided, what is the mass of the liquid at 20.0°C must be provided?

Answer 1

m = 52.9 g

Step-by-step explanation:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

Given data:

Density of 1,2 dibromobenzene = 1.98 g/mL

Volume = 26.7 mL

Mass = ?

Solution:

d = m/v

m = d × v

m = 1.98 g/mL× 26.7 mL

m = 52.9 g