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Date November 2012 Marks available 1 Reference code 12N.1.sl.TZ0.2
Level SL Paper 1 Time zone TZ0
Command term Question number 2 Adapted from N/A

Question

What is the molar mass, in \({\text{g}}\,{\text{mo}}{{\text{l}}^{ - 1}}\), of washing soda crystals, \({\text{N}}{{\text{a}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}} \bullet {\text{10}}{{\text{H}}_{\text{2}}}{\text{O}}\)?

A.     105.99

B.     124.00

C.     263.15

D.     286.19

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 1: Stoichiometric relationships » 1.2 The mole concept
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