A Glass Beaker of Unknown Mass Contains $74.0 \mathrm { ml }$

Multiple Choice

A glass beaker of unknown mass contains $74.0 \mathrm { ml }$ of water. The system absorbs $2000.0 \mathrm { cal }$ of heat and the temperature rises $20.0 ^ { \circ } \mathrm { C }$ as a result. What is the mass of the beaker? The specific heat of glass is 0.18 cal/g ? °C, and that of water is 1.0 cal/g ? C°.

A) 140 g
B) 560 g
C) 540 g
D) 270,000 g