85.75 is GRAMS NaCl present in 1.5 mols NaCl.
There are 6.022 molecules NaCl in 1 mol of NaCl. So there are ....... molecules in 1.5 mols NaCl.
How many molecules are present in 1.5 moles of NaCl?
na =23.0 cl=35.5
23.0 +35.5 = 58.5g
1.5mol x 58.5/1mol = 85.75
2 answers
6.02E23 molecules per mole ... Avogadro's number
3 answers