DP Chemistry (first assessment 2025)

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Question 22M.1A.HL.TZ2.30

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.HL.TZ2.30
Level HL Paper 1A Time zone TZ2
Command term Deduce Question number 30 Adapted from N/A
30.
[Maximum mark: 1]
22M.1A.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

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56% of candidates were able to deduce the EƟ of the reaction.

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