How many moles of H20 are required to react completely with 7.30 moles of NO2? 3NO2(g) + H200 +
NO(g) + 2HNO3(aq) A
1.86 mol
2.19 mol
2.43 mol
O 6.12 mol
O 7.30 mol

2.43 moles of water are require.

Explanation:

Number of moles of water required = ?

Number of moles of NO₂ available = 7.30 mol

Solution:

Chemical equation:

3NO₂ + H₂O     →     NO + 2HNO₃

now we will compare the moles of NO₂ with H₂O.

                         NO₂           :            H₂O

                           3              :              1

                        7.30            :           1/3×7.30 = 2.43 mol