Asked by Karthik
Calculate the mass of sodium,which contains same no.of atoms as are present in 4gm of calcium
Answers
Answered by
DrBob222
1 mol Ca = 40 grams.
Atom in 1 mol Ca = 40 g Ca = 6.02E23
So atoms in 4 g Ca = 6.02E23 x 4/40 = 6.02E22
Now we have 6.02E22 atoms Na. How many mols is that?
6.02E22 atoms Na x (1 mol/6.02E23) = 0.1 mol Na
1 mol = 23 g Na. So 0.1 mol = ? grams.
Atom in 1 mol Ca = 40 g Ca = 6.02E23
So atoms in 4 g Ca = 6.02E23 x 4/40 = 6.02E22
Now we have 6.02E22 atoms Na. How many mols is that?
6.02E22 atoms Na x (1 mol/6.02E23) = 0.1 mol Na
1 mol = 23 g Na. So 0.1 mol = ? grams.
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