Nitroglycerin, Used Both in Medicine and as an Explosive, Can

question 60

Multiple Choice

Nitroglycerin, used both in medicine and as an explosive, can be prepared by the carefully controlled reaction of glycerol (C₃H₈O₃) with nitric acid, as symbolized by: C₃H₈O₃ + 3 HNO₃ → C₃H₅N₃O₉ + 3 H₂O
What mass of nitric acid is required for the production of 2.8 g of nitroglycerin by a process having a 67% yield?

• A) 2.3 g
• B) 0.39 g
• C) 1.6 g
• D) 3.5 g
• E) 1.2 g

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Definitions:

Median

The middle value in a data set, which separates the higher half from the lower half.

Statistically Significant

A term indicating that the results of an analysis show a likely true effect rather than one due to random chance, based on a predetermined threshold of probability.

Statistical Average

A central or typical value calculated from a set of data, commonly referring to the mean, but can also refer to the median or mode.

Random Sample

A specimen that accurately reflects a group, as every individual has an identical opportunity to be included.