This deal with calculating the heat of a reaction.

A reaction in a bomb calorimeter causes the water temperature to decrease from 25.84 degrees Celsius to 20.35 degrees Celsius. The substance reacting has a mass of 0.853 g and the calorimeter contains exactly 2.50 L of water. If the calorimeter has a heat capacity of 1.8k/J degrees Celsius, calculate the heat of the reaction. Is this an exothermic or endothermic reaction?

This deals with calculating the enthalpy change in a reaction.

Calculate the enthalpy change for the reaction 2S(solid) = 3O2(gas) producing 2SO3(gas) given the following information: 1. S(solid) + O2(gas) producing SO2(gas) with a change in heat of reaction = negative 297 kJ 2. 2SO3(gas) producing 2SO2(gas) + O2; with a change in heat of reaction = 198 kJ Please show work and solve

This deals with chemical reactions and the production of heat.

The combustion of methane produces 802 kJ of heat. CH4(gas) + 2O2(gas) produces CO2(gas)+ 2H2O(liquid) Heat = negative 802kJ A) If 20 grams of methane is reacted, how much heat would be produced? B) If the reaction used 105 grams of oxygen, how much heat would have been produced? C) If 25 L of carbon dioxide were formed in the reaction, how muc heat would have been produced? D) 50 grams of methane and 100L of oxygen were reacted. How much heat would have been produced?

A three step problem

A sample of nitrogen gas has a volume of 3.00 L at 25 degrees C. What volume will it occupy at each of the following temperatures if the pressure and number of moles are constant a. 546K b. 0.00C c. 373K

Formation of molecules in a reaction

Using the reaction of hydrogen chloride (hydrochloric acid) and calcium hydroxide to produce water and calcium chloride answer the following: What is the maximum number of molecules of calcium chloride that can be formed in this reaction?