0.1 points 0/4 Submissions Used Determine the formula weights (to 1 decimal plac

Question

0.1 points 0/4 Submissions Used Determine the formula weights (to 1 decimal place) for each of the following compounds. (a) benzoic acid, CH602, a substance used as a food preservative (b) isopentyl acetate, CHaco2CsH1, responsible for the odor of bananas (c) urea, (NH2)2CO, a compound used as a nitrogen fertilizer (d) sucrose, C12H22011, table sugar (e) nitrous oxide, N20, known as laughing gas and used as an anesthetic in dentistry amu amu amu amu amu 0.08/0.1 points |Previous Answers 2/4 Submissions Used

Explanation / Answer

a)

atomic mass of C7H6O2,
AM = 7*MM(C) + 6*MM(H) + 2*MM(O)
= 7*12.01 + 6*1.008 + 2*16.0
= 122.1 amu
Answer: 122.1 amu

b)

atomic mass of CH3CO2C5H11,
AM = 7*MM(C) + 14*MM(H) + 2*MM(O)
= 7*12.01 + 14*1.008 + 2*16.0
= 130.2 amu
Answer: 130.2 amu

c)
atomic mass of (NH4)2CO,
AM = 2*MM(N) + 8*MM(H) + 1*MM(C) + 1*MM(O)
= 2*14.01 + 8*1.008 + 1*12.01 + 1*16.0
= 64.1 amu
Answer: 64.1 amu

d)
atomic mass of C12H22O11,
AM = 12*MM(C) + 22*MM(H) + 11*MM(O)
= 12*12.01 + 22*1.008 + 11*16.0
= 342.3 amu
Answer: 342.3 amu


e)
atomic mass of N2O,
AM = 2*MM(N) + 1*MM(O)
= 2*14.01 + 1*16.0
= 44.0 amu

Answer: 44.0 amu

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