# Chemistry

posted by .

Why would you subtract the heat capacity of the calorimeter when calculating the heat of the reaction?

• Chemistry -

In an enthalpy experiment
total heat = (mass H2O x specific heat H2O x delta T) + Ccal x (delta T)
I may misunderstand the question but I don't think you subtract the heat capacity of the calorimeter.

• Chemistry -

I think that the question is saying why you do subtraction in the equation Qrxn=-Qcal-Qsoln

## Similar Questions

1. ### Chemistry - Thermodynamics

The heat capacity of a bomb calorimeter is 87.5 kJ/K (this value is for the total heat capacity including that of the water jacket around the reaction chamber). If 67.2g of CH4 (g), is combusted under such reaction conditions, what …
2. ### chemistry

a reaction witha known q is performed in a bomb calorimeter and is found that 10.0 kj of heat is required to raise the temperature of the calorimeter by 2.15 degrees C. calculate the heat capacity of the calorimeter.
3. ### chemistry

a reaction witha known q is performed in a bomb calorimeter and is found that 10.0 kj of heat is required to raise the temperature of the calorimeter by 2.15 degrees C. calculate the heat capacity of the calorimeter.
4. ### Chemistry

a. Exactly 4.000 mol of NH3 is burned in a constant volume (bomb) calorimeter immersed into 100.0kg of water. The temperature of water increases by 3.619 degrees C after the reaction. Calculate the heat released by the reaction. Neglect …
5. ### physics

A copper calorimeter of mass ()g contains 380g of a liquid at 12degrees Celsius. A 20W heater is used for 3 minutes to raise the temperature of the liquid and calorimeter to 17 degrees Celsius. The calorimeter has a specific heat capacity …
6. ### chemistry

A chemical reaction in a bomb calorimeter evolves 3.86 kJ of energy in the form of heat. If the temperature of the bomb calorimeter increases by 4.17 K, what is the heat capacity of the calorimeter?
7. ### chemistry

Why would you have to subtract the heat capacity of the calorimeter when calculating the heat of the reaction?
8. ### chemistry

Why would you have to subtract the heat capacity of the calorimeter when calculating the heat of the reaction?
9. ### Chemistry

Why would you subtract the heat of a calorimeter when calculating heat of the reaction?
10. ### chemistry

21.90 kJ/g x 0.1182 g = ?q = energy obtained by combusting salicylic acid. Then calculate the heat capacity of the calorimeter. That is q from above = C/degree c x 2.84 and solve for C, the heat capacity of the calorimeter. q = heat

More Similar Questions