Question

A chemistry student needsof pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is. Calculate the volume of pentane the student should pour out.Round your answer tosignificant digits.

Answer 1

The question is incomplete. the complete question is:

A chemistry student needs 35.0 g of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of pentane is $0.626 g/cm^3$. Calculate the volume of pentane the student should pour out.Round your answer to 3 significant digits.

Answer: The volume of pentane the student should pour out is 55.9 ml

Explanation:

Density is defined as the mass contained per unit volume.

To calculate volume of a substance, we use the equation:

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

We are given:

Density of pentane = $0.626g/cm^3$

Mass of pentane = 35.0 g

Putting values in above equation, we get:

$0.626g/cm^3=\frac{35.0g}{\text {Volume of pentane}}\\\\\text{Volume of pentane}=55.9cm^3=55.9ml$

(Conversion factor: $1cm^3=1ml$)

Hence, the volume of pentane is 55.9 ml