Solution Found!
Determine the number of moles of molecules (or formula units) in each sample.(a) 38.2 g
Chapter 6, Problem 47P(choose chapter or problem)
Determine the number of moles of molecules (or formula units) in each sample.
(a) 38.2 g sodium chloride
(b) 36.5 g nitrogen monoxide
(c) 4.25 kg carbon dioxide
(d) 2.71 mg carbon tetrachloride
Questions & Answers
QUESTION:
Determine the number of moles of molecules (or formula units) in each sample.
(a) 38.2 g sodium chloride
(b) 36.5 g nitrogen monoxide
(c) 4.25 kg carbon dioxide
(d) 2.71 mg carbon tetrachloride
ANSWER:Step 1 of 2
Here, we have to determine the number of moles of molecules which is also called as formula units in each sample :
A formula unit in chemistry is the empirical formula where an ionic compound in its simplest and most reduced terms. It is the simplest positive integer ratio of atoms present in a compound
Steps to find the number of moles:
1. Use the periodic table and get the molar mass of each element.
2. Divide the given mass of the sample by the molar mass of each element; this gives the number of moles.