Homework Answers
Molar mass of Na = 22.99 g/mol
mass(Na)= 37.0 g
use:
number of mol of Na,
n = mass of Na/molar mass of Na
=(37 g)/(22.99 g/mol)
= 1.609 mol
use:
number of atoms = number of moles * Avogadro’s number
= 1.609 * 6.022*10^23 atoms
= 9.692*10^23 atoms
Answer: 9.69*10^23 atoms
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