You place 3.52 g of sodium hydroxide to dissolve in a calorimeter cup. The cup contains 1,000.0 mL of water at 20.00°C (in a calorimeter cup). As the sodium hydroxide dissolves, the temperature of the surrounding water increases to 23.70°C.

Complete the table below and determine the total energy released.

Mass of Water (g)-
Heat Capacity of Water (J/(g °C)) -
Change in Temperature (°C)-
Total Energy Released (J)-

Question

You place 3.52 g of sodium hydroxide to dissolve in a calorimeter cup. The cup contains 1,000.0 mL of water at 20.00°C (in a calorimeter cup). As the sodium hydroxide dissolves, the temperature of the surrounding water increases to 23.70°C. 

Complete the table below and determine the total energy released. 

Mass of Water (g)-	
Heat Capacity of Water (J/(g °C))	- 
Change in Temperature (°C)-	
Total Energy Released (J)-

anonymous · Answer

When it comes to calculations involving solution, the volume=mass, hence the mass of H2O is 1000g.
Specific heat capacity should be a scammed and known value, which is 4.18
change in temperature is given by Final temperature - initial temperature or 23.7-20=3.7 Degrees Celsius.
Energy is calculated by the formula
$$E=m*c*DeltaT=1000*4.18*3.7=15466J=15.466KJ$$