If you have 6.25g of O2, how many moles of H2O are produced?

0.4 moles of water produced by 6.25 g of oxygen.

Explanation:

Given dа ta:

Mass of oxygen = 6.25 g

Moles of water produced = ?

Solution:

Chemical equation;

2H₂ + O₂ → 2H₂O

Number of moles of oxygen:

Number of moles = mass / molar mass

Number of moles = 6.35 g / 32 g/mol

Number of moles = 0.2 mol

Now we will compare the moles of oxygen with water:

O₂ : H₂O

1 : 2

0.2 : 2*0.2 = 0.4 mol

0.4 moles of water produced by 6.25 g of oxygen.