Question

if one mole of magnesium weighs 24 gm then what is the mass of 10 atoms of magnesium

Answer 1

Answer:

So  

4.03594014 x10 ^-23  grams

Explanation:

Here are some prefined values.

m = mass =  g

M = molar mass =  g /mol

A = Avagadro's Constant =6.02214086 x10 ^23  particles / moles

mass /particle =  M(Mg)  / A,  the particle being the one atom, so the mass for one atom.

m ( M g )  =  M(Mg) /A

24.305  (g /mol)   /6.02214086 x10 ^23  (particle/mol)

= 4.03594014 x 10 ^-23(g/particales)

So  

4.03594014 x 10 ^- 23  grams  is the mass per particle, the particle being an atom.