Question

 How many moles are present in 0.35 kg of NO2?

Answer 1

Answer:

$\frac{352}{56} = 6.25moles$

Answer 2

Answer:

Explanation:

The mole is simply a very large number,

6.022

×

10

23

, that has a special property. If I have

6.022

×

10

23

hydrogen atoms, I have a mass of 1 gram of hydrogen atoms . If I have

6.022

×

10

23

H

2

molecules, I have a mass of 2 gram of hydrogen molecules. If I have

6.022

×

10

23

C