Solution Found!
Solved: Without doing any detailed calculations, estimate
Chapter 3, Problem 168P(choose chapter or problem)
Without doing any detailed calculations, estimate which element has the highest percent composition by mass in each of the following compounds:
(a) \(\mathrm{Hg}\left(\mathrm{NO}_{3}\right)_{2}\)
(b) \(\mathrm{NF}_{3}\)
(c) \(\mathrm{~K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)
(d) \(\mathrm{C}_{2952} \mathrm{H}_{4664} \mathrm{~N}_{812} \mathrm{O}_{832} \mathrm{~S}_{8} \mathrm{Fe}_{4}\)
Questions & Answers
QUESTION:
Without doing any detailed calculations, estimate which element has the highest percent composition by mass in each of the following compounds:
(a) \(\mathrm{Hg}\left(\mathrm{NO}_{3}\right)_{2}\)
(b) \(\mathrm{NF}_{3}\)
(c) \(\mathrm{~K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)
(d) \(\mathrm{C}_{2952} \mathrm{H}_{4664} \mathrm{~N}_{812} \mathrm{O}_{832} \mathrm{~S}_{8} \mathrm{Fe}_{4}\)
ANSWER:
Step 1 of 5
Here, we are going to determine the element which has the highest percent composition by mass in each of the following compounds.
Percent composition by mass can be calculated by using the given formula.
Per composition of an element = x 100%
(1) We have to consider the molar masses of the elements first.
(2) Multiplying the molar mass by the number of atoms in the formula for each element.
(3) The greatest product will have the highest composition by mass.