Articles Index - page 2

Ideal Gas Example Problem
This example uses the ideal gas law to determine the number of moles of an ideal gas present in a system where pressure, volume and temperature are known.

Molality Example Problem
Here is an example of calculating concentration or molality of a solution.

Percent Composition by Mass
Here is an example of calculating concentration using percent composition by mass of a solution.

Molarity Example Problem
Here is an example of calculating concentration or molarity of a solution.

Molecular Mass Calculations - Worked Example Chemistry Problems
Use these worked example chemistry problems to help practice calculating molecular mass from the molecular formula.

Nuclear Reactions - Mass - Energy Relations
Learn how to calculate the energy change in a nuclear reaction, such as radioactive decay.

Rate of Radioactive Decay
Work through an example chemistry problem on the rate of radioactive decay, a first order rate reaction.

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