Answer:
2.7*10^23
Step-by-step explanation:
first work out the moles
So do 36g / 80 (80 is bromine's relative Atomic Mass number)
You have 0.45 M
Then, do 0.45 * 6.02*10^23
You get 2.7*10^23, which is your answer
8.8m questions
11.4m answers