Question

How many moles are in 6.4grams of copper​

Answer 1

One mole of copper atoms has Avogadro number of copper atoms i.e. 6.022×10

23

atoms.

Given the mass of Copper is 6.4g

Number of Copper atoms in 6.4g =

molar mass

given mass

​

×Avogadro number

=

63.55

6.4

​

×6.022×10

23

copper atoms

=6.064×10

22

copper atoms

Step-by-step explanation: