A calorimeter is a device used to measure the quantity of heat flow in a chemical reaction. Two of the most common types of calorimeters are...

Understanding Enthalpy and Thermochemical Equations Thermochemical equations are just like other balanced equations except they also specif...

The molar heat of formation of a compound (ΔH f ) is equal to its enthalpy change (ΔH) when one mole of compound is formed at 25°C and 1 atm...

These are molar heats of formation for anions and cations in aqueous solution. In all cases, the heats of formation are given in kJ/mol at 2...

An endothermic process or reaction absorbs energy in the form of heat (endergonic processes or reactions absorb energy, not necessarily as h...

OK, I was originally concerned about the inability to create mailing lables if someone sent me funds via the recently added "gift"...

Sodium acetate or hot ice is an amazing chemical you can prepare yourself from baking soda and vinegar. You can cool a solution of sodium a...

Exothermic chemical reactions produce heat. In this reaction vinegar is used to remove the protective coating from steel wool, allowing it ...

Many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions. Exothermic reactions may occur ...

Most endothermic reactions contain toxic chemicals, but this reaction is safe and easy. Use it as a demonstration or vary the amounts of cit...

1. Heat of Formation Problem Calculate ΔH for the following reaction: 8 Al(s) + 3 Fe 3 O 4 (s) --> 4 Al 2 O 3 (s) + 9 Fe(s) Heat of ...

Problem Hydrogen peroxide decomposes according to the following thermochemical reaction: H 2 O 2 (l) → H 2 O(l) + 1/2 O 2 (g); ΔH = -98.2 kJ...