Concentration (Molarity)

The concentration of moles per litre is known as Molarity (M)
Example
A Salt solution with a molarity of 2 has 2mole of salt in every litre of solution.
A Sugar solution with a molarity of 0.2 has 0.2mole of sugar in every litre of solution.
Example
4.4 grams of carbon dioxide were dissolved in 2 litres of water. Calculate the molarity of the carbon dioxide solution formed.
Step 1 mole of carbon dioxide = 4.4 / 44 = 0.1
Step 2 concentration = 0.1 / 2 = 0.05M

Complete the table below. Click in the coloured squares for extra information, double click to hide the information.

Compound
Mass
Volume
Mole
Molarity(M)
92.0g
200ml
0.58g
3litres
58.0g
100ml
5.8g
500ml
232.0g
1.5litres
46.0g
20ml
4.6g
50ml
12.6g
200ml
9.2g
1litre

 

Solutions

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