DP Chemistry (last assessment 2024)

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Question 19N.2.hl.TZ0.e(i)

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.2.hl.TZ0.e(i)
Level hl Paper 2 Time zone TZ0
Command term Calculate Question number e(i) Adapted from N/A
e(i).
[Maximum mark: 1]
19N.2.hl.TZ0.e(i)

Copper forms two chlorides, copper(I) chloride and copper(II) chloride.

Copper(I) chloride undergoes a disproportionation reaction, producing copper(II) chloride and copper.

2Cu+ (aq) → Cu (s) + Cu2+ (aq)

Calculate the cell potential at 298 K for the disproportionation reaction, in V, using section 24 of the data booklet.

[1]

Markscheme

Eθ = «+0.52 – 0.15 = +» 0.37 «V» ✔

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