Question

How many moles is 125 g CuO2?

Answer 1

1.31moles

Step-by-step explanation:

Given parameters:

Mass of CuO₂ = 125g

Unknown:

Number of moles = ?

Solution:

To solve this problem, we use the expression below:

Number of moles =
`(mass)/(molar mass)`

Molar mass of CuO₂ = 63.6 + 2(16) = 95.6g/mol

So;

Number of moles =
`(125)/(95.6)` = 1.31moles