paigeywagey1
paigeywagey1
27-01-2017
Chemistry
contestada
How many atoms in 12.5 grams of sodium?
Respuesta :
Kimchicaik
Kimchicaik
27-01-2017
22.99 mol in one gram of sodium, so: 12.5/22.99=
0.543714659 mol.
Round it to whatever you need to.
Answer Link
JoshEast
JoshEast
27-01-2017
mol of Na = [tex] \frac{Mass of Na}{Molar Mass of Na} [/tex]
= [tex] \frac{12.5g}{23.00g/mol} [/tex]
= 0.54 mol
# atoms of Na = mol × avogadro's constant
= 0.54 mol × [6.02 × 10²³]
= 3.25 × 10²
³
Answer Link
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