Question

Note the molecular mass of a copper(I) oxide molecule in the image below. What is the mass of 8.250 moles of Cu2O?

Answer 1

Answer : The mass of copper(I) oxide is, 1180.5 grams.

Explanation : Given,

Moles of copper(I) oxide = 8.250 mol

Molar mass of copper(I) oxide = 143.09 g/mol

Formula used:

`\text{ Mass of copper(I) oxide}=\text{ Moles of copper(I) oxide}* \text{ Molar mass of copper(I) oxide}`

Now put all the given values in this formula, we get:

`\text{ Mass of copper(I) oxide}=(8.250moles)* (143.09g/mole)=1180.5g`

Therefore, the mass of copper(I) oxide is, 1180.5 grams.