Art of Problem Solving

Arcticturn Chem Prep: Difference between revisions

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==2024==
8. Which substance may be treated with bleach (sodium hypochlorite) to render it less hazardous?


(A) Sodium cyanide
(B) Ammonia
(C) Hydrochloric acid
(D) Ozone
9. Which indicator would be most suitable for a titration to determine the concentration of ammonia in a window cleaning solution using aqueous HCl?
(A) Eriochrome Black T
(B) Ferroin
(C) Methyl orange
(D) Phenolphthalein
11. Ethane, C2H6, and diborane, B2H6, do not adopt analogous molecular structures. Which experimental technique would be least useful in establishing this fact?
(A) Infrared spectroscopy
(B) Mass spectrometry
(C) Nuclear magnetic resonance spectroscopy
(D) X-ray crystallography

Latest revision as of 17:24, 27 December 2024