Determine the formula weights of each of the following compounds.

Question

Nitrous oxide, N2O , known as laughing gas and used as an anesthetic in dentistry.
Express your answer to one decimal place.

Benzoic acid, HC7H5O2 , a substance used as a food preservative.
Express your answer to one decimal place.

Mg(OH)2 , the active ingredient in milk of magnesia.Express your answer to one decimal place.

Urea, (NH2)2CO , a compound used as a nitrogen fertilizer.
Express your answer to one decimal place.

Isopentyl acetate, CH3CO2C5H11 , responsible for the odor of bananas.
Express your answer to one decimal place.

Answer 1

N2O = 2x14.01 + 16.00 = 44.0

HC7H5O2 = 1.0 + 7x12.0 + 5x1.0 + 2x16.0 = 122.0

Mg(OH)2 = 24.3 + 2x16.0 + 2x1.0 = 58.3

 

The others are done the same way