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Question 23M.1A.SL.TZ2.11

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ2.11
Level SL Paper 1A Time zone TZ2
Command term Question number 11 Adapted from N/A
11.
[Maximum mark: 1]
23M.1A.SL.TZ2.11

A vessel contains a mass X of helium gas and a mass 2X of oxygen gas.

Molar mass of helium = 4 g

Molar mass of oxygen = 32 g

What is the number of helium atomsnumber of oxygen molecules?


A.  18

B.  14

C.  4

D.  8

[1]

Markscheme

C

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