How many atoms are present in 6.0g of magnesium? [Mg = 24, N.A = 6.02 x 10 \(^{23}\)mol]

giftmartins

7 years ago

first step
conver 6.0g of magnesium to moles
note: molecular mass of magnesium is 24g/mole
6.0g x 1mole/24g/mole = 0.25mole
Avogrado's number is 6.02 x 10^23atoms
0.25mle x 6.02 x 10^23atoms/1 = 1.51 x 10^22 atoms
therefore 6.0g of magnesium is equivalent to 1.51 x 10^22atoms

jonathanolatunji644

3 years ago

The ans should be 1.51 x 10²³

Ayomi424

4 years ago

Definitely correct

Abel004

2 years ago

please how did the 10^23 turn to 10^22 ,am confused there

Olaitan215

2 years ago

thye made mistake in the option,it ought to be 1.51×10^23
mass/molar ×6.02×10^23 which is the avogrados constant
6.0/24×6.02×10^23
1.51×10^23

paddy2008

1 year ago

c is meant to be raise to power 23

Ewaoluwanimi45

2 years ago

its meant to be 1.51× 10^2

Myschool Nuel

1 year ago

Thank you all for your contributions. The correction has been effected.