18 Nov 2021
Problem 120
Page 121
Section: Challenge Problems
Chapter 3: Molecules, Compounds, and Chemical Equations
Textbook ExpertVerified Tutor
18 Nov 2021
Given information
Percentage by mass of element 
and 
are 
Atomic mass of is 
that of 
Step-by-step explanation
Step 1.
Percentage by mass of element and are That means mass of element is 
and mass of element is 
Atomic mass of is that of Therefore, atomic mass of is 
Calculate the number of moles of 
Where,
-
is mass of . -
is atomic mass of .
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