2P03: pH Changes

Results part 1

Volume of diluted sodium hydroxide added (cm cube)	Total volume of diluted sodium hydroxide added (cm cube)	pH
0	0	1
2	2	1
2	4	1
2	8	1
2	10	1
2	12	2
2	14	2
2	16	2
2	18	2
2	20	2
2	22	8
3	25	14

Initial à1

Final à7

Exercise

1 (i) Hydrochloric acid + sodium hydroxide à sodium chloride + water

(ii) Hydrochloric acid + copper (II) oxied à copper chloride + water

2. 25, 25, end-point of acid

3. increases, decreases

4. (i) 14

(ii) 7

Draw the graph in a smooth line according to the results (Better if you were to use a graph paper, be neat) J