The number of atoms will be more for chromium ring than for mangnese ring.
A mole is 6.022*10^23 atoms/molecules. The SI unit for the amount of substance is a mole and it is represented by “mol”.
The mass of manganese ring is 27.5 grams.
Molar mass of manganese is 54.9 gram/mol.
n=m/M
n=27.5/54.9
n=0.500 mol
The number of atoms of manganese ring can be calculated as follows:
Number of atoms= 6.022*10^23 * 0.500=3.01*10^23 atoms.
The mass of chromium ring is 27.5 grams.
Molar mass of chromium is 51.9 gram/mol.
n=m/M
n=27.5/51.9
n=0.529 mol
The number of atoms of manganese ring can be calculated as follows:
Number of atoms= 6.022*10^23 * 0.529=3.19*10^23 atoms.
Therefore, the number of atoms will be more for chromium ring than for mangnese ring.
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