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THE CANADIAN CHEMISTRY CONTEST 2014
PART A – MULTIPLE CHOICE QUESTIONS (60 minutes)
All contestants should attempt this part of the contest before proceeding to Part B and/or Part C
The only reference material allowed is the CIC/CCO Periodic Table provided. Answers must be completed on the Scantron Sheet Provided
A scientific calculator is allowed. No phones or any devices that can be used for communication are allowed.
1. To safely and efficiently prepare 1.0 L of a 1.0 mol L–1 solution of HCl 6. The top diagram represents the initial state of a mixture of diatomic gas A
from a 12.0 mol L–1 stock solution of HCl, what should a chemist add to a and diatomic gas B in a closed reaction flask. Which of the diagrams under
1 L volumetric flask first? the answer choices represents the contents of the flask if the reaction goes
A) 500 mL of distilled water with a beaker to completion? The balanced chemical equation is: A + 3 B → 2 AB
2 2 3
–1
B) 120.0 mL of 12.0 mol L HCl with a graduated cylinder
– 1
C) 83.3 mL of 12.0 mol L HCl with a graduated cylinder B molecule
– 1
D) 12.0 mL of
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