DP Chemistry (last assessment 2024)

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Question 23M.1.HL.TZ1.2

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1.HL.TZ1.2
Level HL Paper 1 Time zone TZ1
Command term Question number 2 Adapted from N/A
2.
[Maximum mark: 1]
23M.1.HL.TZ1.2

A student heated a known mass of zinc powder in an open crucible until there was no further mass change and recorded the final mass.

What would the student be able to derive from this data?

  1. Percentage composition of zinc oxide
  2. Empirical formula of zinc oxide
  3. Molecular formula of zinc oxide


A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

A

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