3 NO2(g) + H2O(l)--->2 HNO3(aq) + NO(g)

Question

Suppose someone needs 25.0 kg of HNO3. How much NO2 should they start with to end up with the amount they need?

Answer 1

25kg of HNO3? How many moles of HNO3 is that...figure it. Then, the mole ratio tells that you want 3/2 (1.5 x) as many moles of NO2, convert that to grams.