Question

How many moles are there in 8 g of CuO. [Cu=64,O=16]

Answer 1

Answer:

$\frac{1}{10}$ moles are there in 8 g of CuO.

Explanation:

mole = $\frac{mass}{gram molecular mass}$

CuO

mass = 8g  

molecular mass = 1 × 64+ 1 × 16 = 64+16 = 80

no . of .moles = $\frac{8}{80}$ = $\frac{1}{10}$ moles