C w M w,hot D T water (6) In these equations, C cal = heat capacity of the calorimeter C w = heat capacity of water M w,cal = mass of water in the calorimeter D T cal = temperature change of the calorimeter M w,hot = mass of hot water added to calorimeter D T water = temperature change of hot water C sub = heat capacity of assigned substance M sub,cal = mass of assigned substance in calorimeter Equipment and Materials analytical balance Calorimeter with stirrer 2 thermometers plastic powder funnel 50-mL graduated cylinder Nested styrofoam cups Foam cover for cups Hot water reservoir (thermos) Cold water reservoir (thermos) distilled water copper (pre-1981 pennies will do) lead shot sand glass beads acetone ethanol Safety Safety glasses must be worn at all times in the laboratory.
(pre-1981 pennies; will do; ) (50-mL; graduated; cylinder) (Foam; cover; for cups; Hot water reservoir)
pre-1981 pennies 50-mL Foam
will do graduated cover
cylinder
for cups Hot water reservoir