Temperature change & chemical equations.
Asked Oct 24, 2011, 07:40 PM
inital temp. is 21 C
finial temp. is 30.3 C
change in temperature is __________________?
initial weight of candle = 13.113 g
final weight of candle = 12.945 g
Amount of candle burned = _________?
heat absorbed by water (q)=s*m*delta T (assume volume of water equals to mass of water, since density = 1.00 g/mL). s (specific heat of water = 4.184 J/g C).
a.) calculate the amount of heat absorbed by the water in the experiment?
b.) how many heat did candle burned in the experiment?
c.) calculate the heat released per gram of candle burned?
2.) what are the chemical equations that are useful for determining the heat of solution, the heat of reaction, the heat of combustion.