Pages in this set

Page 1

Preview of page 1
14.4 Water of crystallisation

%6. Example 14.4.1: Calculate the % of water in hydrated magnesium
sulphate MgSO4.7H2O

%6. Relative atomic masses: Mg = 24, S = 32, O = 16 and H = 1

%6. relative formula mass = 24 + 32 + (4 x 16) + [7 x (1…

Page 2

Preview of page 2




TITRATION CALCULATIONS

The question:

10.0 cm3 of a solution of potassium hydroxide was titrated with a 0.10 M[1]
solution of hydrochloric acid. 13.5 cm3 of the acid was required for neutralization.
Calculate the concentration of the potassium hydroxide solution.

Step 1

Write down everything you know. Placing the one you…

Page 3

Preview of page 3


Number of moles of HCl = 0.0014 mol



Number of moles KOH = 0.0014 mol ­ they react in a one to one ratio

Step 4



Work out the concentration of the potassium hydroxide.







Concentration = 0.14 M

Questions



1. Sodium ethanedioate, Na2C2O4, can be made into a solution of…

Page 4

Preview of page 4





Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »