Interpretation: The substance with the largest number of atoms needs to be determined.
Concept Introduction: The number of moles can be calculated from mass and molar mass as follows:
Here, m is mass and M is molar mass.
Now, according to
Explanation of Solution
The given substances are 82.0 g of Kr, 0.842 mol of
Considering, 82.0 g of Kr. Calculate the number of moles as follows:
Here, m is mass and M is molar mass.
Molar mass of Kr is 83.8 g/mol thus, the number of moles can be calculated as follows:
Now, according to
Therefore, the number of atoms in 82.0 g of Kr is
Now, considering 0.842 mol of
Considering 36.0 g of
Thus, the number of molecules of nitrogen gas in 1 mol will be
The calculated number of moles is 1.285 mol thus, the number of atoms will be:
Thus, the number of atoms of nitrogen will be
Now, on comparing the substance with the largest number of atoms will be 0.842 mol of
Chapter 10 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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