A pycnometer is a glass apparatus used for accurately
determining the density of a liquid. When dry and empty, a certain
pycnometer had a mass of 27.364 g. When filled with distilled water
at 25.0°C, it weighed 36.448 g. When filled with chloroform (a
liquid once used as an anesthetic before its toxic properties were
known), the apparatus weighed 40.821 g. At 25.0°C, the density of
water is 0.99704 g/mL
What is the density of chloroform?