determine the number of moles of Cr atoms in 50.00grams of Cr2Cl3

molar mass of Cr2Cl3 = 158.5 g/mole
number of mole of Cr2Cl3 in 50 grams of Cr2Cl3= 0.3155 moles

Question

determine the number of moles of Cr atoms in 50.00grams of Cr2Cl3

molar mass of Cr2Cl3 = 158.5 g/mole
number of mole of Cr2Cl3  in 50 grams of Cr2Cl3= 0.3155 moles

anonymous · Answer

Moles= mass/Molecular mass
Moles=50/158.5=0.3155. You seem t have answered it yourself.

anonymous · Answer

i'm asked to find the number of Cr in the the compound Cr2Cl3..

anonymous · Answer

"number of moles"

anonymous · Answer

Oh i'm sorry did not read that part.
In 1 molecule of Cr2Cl3 how many atoms of Cr are there?

anonymous · Answer

my bad..its CrCl3

anonymous · Answer

1 atom of Cr in CrCl3

anonymous · Answer

That means how many ever moles of CrCl3 molecules are present that many moles of Cr atoms will only be present.

anonymous · Answer

the questions asks for the number of moles of Cr in 50.00grams of Cr2Cl3