Question
Asked Sep 2, 2019
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What mass (g) would 4.10 x 10^16 atoms Mg have

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Expert Answer

Step 1

We have to determine the mass of 4.10×1016 atoms of Mg.

Step 2
  • Calculate the number of moles of Mg atoms-

1 mole of any substance contains 6.022×1023 atoms, known as Avogadro’s number.

6.022 x 10 atoms = 1 mole
1 mole
4.10 x 101 atoms x
. 4.10 x 1016atoms
6.022 x 10
atoms
= 0.681x107 moles
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6.022 x 10 atoms = 1 mole 1 mole 4.10 x 101 atoms x . 4.10 x 1016atoms 6.022 x 10 atoms = 0.681x107 moles

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Step 3

Now, Molar mass of Mg = 24.305 g/mol

It means mass of 1 mole Mg atom = 24.305 g

Therefore, the mass of ...

Mass of 1 mole Mg atoms
24.305 g
moles x 4.305g|
1mole
. Mass of 0.681x107 moles of Mg atoms = 0.681x 10
16.55x10g
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Mass of 1 mole Mg atoms 24.305 g moles x 4.305g| 1mole . Mass of 0.681x107 moles of Mg atoms = 0.681x 10 16.55x10g

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