can someone please write the equation and answer
2006-12-07 11:50:58 · 3 answers · asked by gautamsumeet 1 in Science & Mathematics ➔ Chemistry
The chemical equation for table salt is NaCl, or sodium chloride.
The atomic mass for Na is 23 g/mol. The atomic mass for Cl is 35g/mol. Add these two figures and the weight, or molar mass, of your compound is 58 g/mol.
# of moles = (mass) / (Molar mass)
# of moles = (120g) / (58g/mol)
# of moles = 2.07 mol
Therefore, there are 2.07 mol in 120 g of table salt. :)
[EDIT] And I'm glad I stumbled across this, because I just learned this last week and I've got an exam in five days! XD
2006-12-07 12:03:36 · answer #1 · answered by A M 2 · 0⤊ 0⤋
moles are 6.022x10 to the 23rd power. so i think thats it unless you needed to look for Na on the periodic table then thats a completely different problem
2006-12-07 19:53:59 · answer #2 · answered by teddy12290 2 · 0⤊ 1⤋
moles = g/MW
g = 120
MW = 58.44
you do the math
2006-12-07 19:53:43 · answer #3 · answered by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6 · 0⤊ 0⤋