DP Chemistry (last assessment 2024)
Question 22M.1.hl.TZ2.30
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.hl.TZ2.30 |
| Level | hl | Paper | 1 | Time zone | TZ2 |
| Command term | Deduce | Question number | 30 | Adapted from | N/A |
30.
[Maximum mark: 1]
22M.1.hl.TZ2.30
Which E⦵ value, in V, for the reaction Mn (s) + Zn2+ (aq) → Mn2+ (aq) + Zn (s) can be deduced from the following equations?
Mn (s) + 2Ag+ (aq) → Mn2+ (aq) + 2Ag (s) E⦵ = 1.98 V
Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s) E⦵ = 1.10 V
Cu (s) + 2Ag+ (aq) → Cu2+ (aq) + 2Ag (s) E⦵ = 0.46 V
A. 0.42
B. 1.34
C. 2.62
D. 3.54
[1]
Markscheme
A
Examiners report
56% of candidates were able to deduce the EƟ of the reaction.