DP Chemistry (first assessment 2025)

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Question 21M.2.SL.TZ2.1d(ii)

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.SL.TZ2.1d(ii)
Level SL Paper 2 Time zone TZ2
Command term Calculate Question number d(ii) Adapted from N/A
d(ii).
[Maximum mark: 1]
21M.2.SL.TZ2.1d(ii)
(d(ii))

2.85 g of CaCO3 was collected in the experiment in d(i). Calculate the percentage yield of CaCO3.

(If you did not obtain an answer to d(i), use 4.00 g, but this is not the correct value.)

[1]

Markscheme

«2.853.30 × 100 =» 86.4 «%» ✓

 

Accept answers in the range 86.1-86.4 «%».

Accept “71.3 %” for using the incorrect given value of 4.00 g.

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