Question

i need to convert the following number of atoms into grams

d. 1 million atoms of Br bromine

e. 3x10^23 atoms of Ne neon

Answer 1

There are 6.02 x 10^23 atoms in a mole of atoms. A mole of Br atoms has a mass of ??. Look it up on the periodic table. It is about 80 I think. Ne is about 20. This information will work both of the problems. Post your work if you get stuck.