Question

pu

Answer 1

(1 mol Mg/6.02 x 10^23 atoms Mg). Like your last question, it is always the same ratio. Just flipped based on what you want. If you have atoms/molecules and you want moles, put atoms/molecules (the number will always be 6.02 x 10^23) in the denominator. If you have moles and want atoms/molecules, put 1 mol of whatever in the denominator. That way the units always cancel. Does it make sense?