An experiment requires 13.0 g of cyclohexane, which has a density of 0.7781 g/mL at 25° C. What volume of cyclohexane should be used?

Express your answer using three significant figures.

1 answer

To find the volume of cyclohexane needed, we can use the formula for density:

Density=MassVolume

Rearranging this formula to solve for volume gives:

Volume=MassDensity

We are given:

  • Mass of cyclohexane = 13.0 g
  • Density of cyclohexane = 0.7781 g/mL

Now, we can calculate the volume:

Volume=13.0,g0.7781,g/mL16.7,mL

Now, rounding to three significant figures, the volume of cyclohexane that should be used is:

16.7,mL