Pages in this set

Page 1

Preview of page 1
Triple Chemistry Revision Notes:
Chemical Calculations

Atoms of different elements have different masses. This is determined by the number of protons in
an atom (the atomic mass/ Ar values).

Ar values- Atomic mass. This is the number of protons in the atoms.
Mr values- Molecular mass; this is the combined…

Page 2

Preview of page 2
Worked Example-

10.0cm3 of a solution of Potassium Hydroxide was titrated with a 0.10M solution of Hydrochloric
Acid. 13.5 cm3 of the acid was required for neutralisation. Calculate the concentration of the
potassium hydroxide solution.

Step 1: Write down the concentrations, volumes ad number of moles that you know for…

Page 3

Preview of page 3
Step 4: You now have enough information to work out the concentration of Potassium Hydroxide.
Use the triangle again to find out which formula to use.

Concentration=



Concentration= = 0.135 mol dm-3

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »