chemistry help; please help?

Question

A pycnometer with a mass of 51.46 g when empty, has a mass of 97.77 g when filled with water (density = 1.000 g/mL), and a mass of 82.03 g when filled with liquid C.

What is the volume of the pycnometer?

What is the density of liquid C?

Answer 1

A) 97.77g - 51.46g = 46.31g H2O = 46.31 mL H2O

B 82.03g - 51.46g = 30.57g C

30.57gC/46.31mLC = 0.6601g/mL