Question

How many moles of copper atoms are in 150g of copper metal ​

Answer 1

`1.42*10^(24)`.

Step-by-step explanation:

1. Find the molar mass of copper.

Using the periodic table, we are able to obtain the molar mass of copper:

63.546 g/mole.

There are, approximately, 6.022*10^23 atoms of any element in one mole of that element. This means that there are 6.022*10^23 atoms in 63.546 grams of copper. Hence, we may construct a rule of 3 to answer the question.

2. Construct a rule of 3.

g -------------- 6.022*10^23 atoms

150.0g ---------------- x

`x=(150*6.022*10^(23) )/(63.546) =1.42*10^(24)`

Therefore, the amount of atoms that there are in 150g of copper is
`1.42*10^(24)`.