Calculate the number of atoms in 4g of magnesium?
Answer:
Number of moles of magnesium = 4/24.3 = 0.165 moles approximately
Each mole contains 6.023 * 10 ^23 atoms, so 0.165 contains 0.99 * 10^23 atoms.
9.90 X 10 to the 22nd power ATOMS
Here's how i did it:
#g/#grams of Mg in a mol of Mg = Mg moles
Mg Moles X Avogrados #= # of atoms
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