Question: how many atoms of bromine are there in 2 moles of bromine gas?
Answer: Bromine at standards temperature has diatomic molecules , and by definition one mole of anything has Avogadro 's Number of molecules . Therefore , 2.6 moles of bromine contain 2 ( exact ) X 2.6 X 6.022 X 10 twenty-3 or 3.1 X 10 twenty-four atoms , to the justifiable numbers of important digits .