Pentane (C5H12) is a liquid with a density of 0.626 g/mL near 25C. Find the true mass of pentane when the mass in air is 14.82 g. Assume air density 0.001 2 g/mL.

Problem 2-8

Pentane is a liquid with a density of 0.626 g/mL near 25C. Find the true mass of pentane when the mass in air is 14.82 g. Assume air density 0.0012 g/mL.

Step by Step Solution

Step 1 of 2

The true mass of pentane is given by Buoyancy equation-

.......................(1)

Where - density of air= 0.0012 g/mol

- density of calibration wt.

d- density of pentene = 0.626 g/mol

m’ mass is the air = 14.82 g