Question

Find out the number of atoms in 6g of magnesium

Answer 1

Answer:

We all know that 1 mole of any substance contains Avogadro number (6x 10^23) of atoms. Thus, 6 grams of Magnesium contains 1.5x10^23 atoms of Mg.

Explanation:

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Answer 2

Explanation:

The way to calculate this is to divide the the mass (6 .0) by the atomic wwight of Magnesium (24.3). Now you have calculated the amount of moles of magnesium Moles are converted to number off atoms by multiplying with Avrogado’s number (6.02×10^23). The answer should be 2.5 x 10^22 atoms. (Note: your answer cannot have more significant digits than your original numbers, so I gave it to the same precision as the number 6.0).

one mole of magnesium weighs 24 grams

so lets find how many moles is 6 grams

on caluclation

1mole=24grams

?moles=6 grams

?=6/24*1

?=0.25

as we know 1 mole = avagadro number of atoms or particles

we have 0.25 moles soo we have 0.25 * avagadro number

i.e. 0.25* 6.023 *10^23