Tuesday 28 February 2012

Dilutions!

Dilutions are when two solutions are mixed making the conentration change. It is the process of decreasing the concentration by adding a solvent (usually water). Dilution can be expressed as the formula (n1 = n2) (C1V1 = C2V2.

To do a dilution problem, Mr. Doktor told us to always write down what we are given.

For Example:
"Determine the cocentration when 100mL of 0.10M Hcl is diluted to a final volume of 400mL"

Step 1: First write down all given data
Step 2: Manipulate the equation
Step 3: Plug in data to the variables
Step 4: Solve

V1 = 100mL V2=400mL C1=0.10M

(100)(0.1)/400 = 0.025M

Therefore the C2 is 0.025mol/L

<b> This video explains how to do indepth Dilution equation </b>

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