Respuesta :

Answer:

2 g of H₂

Explanation:

We have:

7 g of N₂

16 g of NO₂

16 g of O₂

2 g of H₂

Let's count to verify the moles:

7 g . 1 mol / 28g = 0.25 moles of nitrogen

16 g . 1 mol / 46g = 0.348 moles of nitrogen dioxide

16 g . 1mol /32g = 0.5 moles

2 g . 1 mol / 2g = 1 mol

The biggest number of moles is in the hydrogen.

1 mol of anything contains NA particles

1 mol of oxygen contains 6.02×10²³ molecules, the maximun number