Consider the following four samples:

of potassium

of lithium

of magnesium

of chlorine gas

Which of the given samples contains the most atoms?

Convert the following amount from grams (g) to moles (m)

How many moles is of ?

Consider the reaction above. If you start with of potassium bromide, how many moles of bromine are produced? How many molecules is this equal to?

How many moles of are present in of the substance?