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VIDEO ANSWER: Starting with our balanced chemical equation, 3NO2 plus H2O producing 2HNO3 and NO. We want to calculate the moles of HNO3 that is produced in a reaction of 12 .5 grams of NO2 to excess water. So we'll do a stoichiometry calculation.
how many moles of hno3 will be produced from the reaction of 125 g of no2 with excess water in the following chemical reaction 3 no2g h2o l 2 hno3g nog