Question

Number of sodium atoms present in 230u of sodium is

Answer 1

6.02 x 10e24 atoms /mole x 3 mole or 1.8 x 10 e24 Na atoms. Atomic weight of Na from periodic table is the number if grams a mole weighs 24 g/mole x 3 moles = 72 g if Na in 3 moles.