Question

How many atoms of chlorine are there in 35.5×10^-5 g of chlorine

Answer 1

Answer:

Since 35.5g is one mole of chlorine, we have 6.022 x 10^23 molecules of the gas. Since chlorine gas is diatomic (Cl2), there are 2 x 6.022 x 10^23 = 1.204 x 10^24 atoms of chlorine in the 1 mole.