A Special Flask Used in the Determination of Densities, Called

Multiple Choice

A special flask used in the determination of densities, called a pycnometer, has a mass of 16.3179 g when empty, and it has a mass of 48.0250 g when filled with water at 20.0°C.When this same pycnometer is filled with ethyl alcohol at 20.0°C, it is found to have a mass of 41.3934 g.Find the density of ethyl alcohol at 20.0°C. (Given: at 20.0°C, the density of water is 0.9982 g/mL)

A) 0.7894 g/mL
B) 0.7923 g/mL
C) 0.7908 g/mL
D) 1.303 g/mL
E) 0.7674 g/mL