DP Chemistry (last assessment 2024)

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Question 18N.2.hl.TZ0.1c.i

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.2.hl.TZ0.1c.i
Level hl Paper 2 Time zone TZ0
Command term Sketch Question number c.i Adapted from N/A
c.i.
[Maximum mark: 2]
18N.2.hl.TZ0.1c.i

3.26 g of iron powder are added to 80.0 cm3 of 0.200 mol dm−3 copper(II) sulfate solution. The following reaction occurs:

Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s)

(c.i)

Sketch a graph of the concentration of iron(II) sulfate, FeSO4, against time as the reaction proceeds.

[2]

Markscheme

 

 

initial concentration is zero AND concentration increases with time ✔

decreasing gradient as reaction proceeds ✔

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