What are some examples of dilution calculations?
Diluting a sample will reduce the molarity.
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For example if you have 5mL of a 2M solution which is diluted to a new volume of 10mL the molarity will be reduced to 1M.
To solve a problem like this one you'll apply the equation:
M1V1 = M2V2
This would be solved to find
M2 = (M1V1)/V2
M2 = (5mL*2M)/10mL
M2 = 1M
Here is a video which discusses how to complete this type of question.