# Mr. Chapman Chemistry 30.  A concentrated solution – contains a relatively large amount of solute  A dilute solution – contains a relatively small amount.

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Mr. Chapman Chemistry 30

 A concentrated solution – contains a relatively large amount of solute  A dilute solution – contains a relatively small amount of solute  Dilution – the process of decreasing the concentration of a solution by adding solvent.

 Imagine this concentrated salt solution on the left... It’s concentration is C 1 = n/V 1  Suppose we diluted it by adding a bunch of water to it... It’s concentration is now C 2 = n/V 2

Number of moles in this one... Equals number of moles in this one...

 From here we can derive the dilution equation:  Remember that n = moles! n = C 1 V 1 n = C 2 V 2 C 1 V 1 = C 2 V 2 The Dilution Equation

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