Question

calculate the number of moles for the following 69 g of Na ( finding mole from mass)​

Answer 1

Answer:

3moles

Step-by-step explanation:

weight of Na ~23gms

now no.of moles = given weight/molar weight of that substance

therefore n=69/23

equals to 3 moles approx

Answer 2

no if moles= mass in grams/gmm

mass in grams = 69g

gmm = 23

therefore, no of moles =69/23

=3mole