Question

Convert 3.00 grams of sodium into atoms {show work please}

Answer 1

mol of Na =
`(Mass of Na)/(Molar Mass of Na)`

=
`(3.00g)/(23.00g/mol)`

= 0.13 mol

# atoms of Na = mol × avogadro's constant

= 0.13 mol × [6.02 × 10²³]

= 7.83 × 10²²