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Chromium and other metals with metallic bonding do not literally have "moles" but rather "formula units" with similar properties. The formula unit is a single atom; therefore, the number of atoms in 3 formula units is 3 times Avogadro's Number or about 1.81 X 1024 atoms.

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Q: How many atoms present in 3 moles of chromium?

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It is 1.20 x 10 ^23.You multiply 2 moles times 6.022x10^23 atoms, which is Avogrado's number.

Chromium's molar mass is 51.996 g/mol , so there are 260/51.996 or approximately 5 moles in 260g of chromium.

44 moles of atoms

4 moles of oxygen atoms are present in 4 moles of H2O

4,80 moles of Fe contain 28,9062761136.10e23 atoms.

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1 mole of any element has 6.02x10^23 number of atoms.

It is 1.20 x 10 ^23.You multiply 2 moles times 6.022x10^23 atoms, which is Avogrado's number.

Approx 0.2635 moles.

The number of atoms is 18, 069.10e23.

1.8x10*24

Chromium's molar mass is 51.996 g/mol , so there are 260/51.996 or approximately 5 moles in 260g of chromium.

44 moles of atoms

4 moles of oxygen atoms are present in 4 moles of H2O

4,80 moles of Fe contain 28,9062761136.10e23 atoms.

How many moles of HCl are present in 154 g of HCl?

2,2 moles of plutonium: 13,248711938.1023 atoms.

A mole of any substance has 6.022 x 1023 particles(atoms, molecules or ions) of that substance. So 5 moles of chromium would have 6.022 x 1023 x 5 atoms = 30.11 x 1023 atoms.

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