How many atoms are in 5.0 moles copper?

1 Answer
anor277
Jun 3, 2018

Approx. #30xx10^23# #"copper atoms......."#

Explanation:

You could have asked how many copper atoms exist in 6 dozen copper atoms....clearly the answer is 72. Instead of the dozen, we use another collective number,

i.e. #N_A=underbrace(6.022140857(74)xx10^23*mol^-1)_"the Avocado Number, the number of avocadoes in one mole"#....

And so we take the PRODUCT....

#5*molxx6.022140857(74)xx10^23*mol^-1=??*"copper atoms"#

Can you tell me (with reference to something else) the MASS of the given molar quantity? And if you can understand this you understand molar equivalence to degree level. Congratulations.

Related questions
See all questions in The Mole
Impact of this question
7881 views around the world
You can reuse this answer
Creative Commons License