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Answer to Question #30673 in Other Chemistry for Kel

Question #30673
Nitric acid is formed by the reaction of nitrogen dioxide with water. How many moles of water are needed to react with 8.4 mol of nitrogen dioxide?

3NO2 (g) + H2O (l)------> NO (g) + 2HNO3 (aq)
Expert's answer
Accordinng to the equation
3NO2(g) + H2O(l)------> NO(g) + 2HNO3(aq)
we can find the amount of substance of water:
n(NO2) : n(H2O) = 1:3;
n(H2O) = n(NO2)*1/3
If the amount of substance of nitrogen dioxide is 8.4 mol
n(H2O) = 8.4*1/3
n(H2O) = 2.7 moles

Answer: 2.7 moles

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