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When nitrogen dioxide (NO2) from car exhaust combines with
Chapter 6, Problem 118CQ(choose chapter or problem)
When nitrogen dioxide (NO2) from car exhaust combines with water in the air, it forms nitrogen oxide and nitric acid (HNO3), which causes acid rain.3NO2(g) + H2O(l) ? NO(g)+ 2HNO3(aq)a. How many moles of NO2 are needed to react with 0.250 mol of H2O?b. How many grams of HNO3 are produced when 60.0 g of NO2 completely reacts?c. How many grams of HNO3 can be produced if 225 g of NO2 is mixed with 55.2 g of H2O?
Questions & Answers
QUESTION:
When nitrogen dioxide (NO2) from car exhaust combines with water in the air, it forms nitrogen oxide and nitric acid (HNO3), which causes acid rain.3NO2(g) + H2O(l) ? NO(g)+ 2HNO3(aq)a. How many moles of NO2 are needed to react with 0.250 mol of H2O?b. How many grams of HNO3 are produced when 60.0 g of NO2 completely reacts?c. How many grams of HNO3 can be produced if 225 g of NO2 is mixed with 55.2 g of H2O?
ANSWER:Solution 118CQStep 1 of 4:Given reaction:3NO2(g) + H2O(l) NO(g)+ 2HNO3(aq)a. Here, we are asked to find the number of moles of NO2 that are needed to react with 0.250 mol of H2OFrom the reaction given, 3 mol NO2 = 1 mol H2O. so, the mole-mole factor is: = and So, the number of moles of NO2 that are needed to react with 0.250 mol of H2O is: = 0.250 mol of H2O = 0.075 mol NO2Therefore, 0.075 mol NO2 are needed to react with 0.250 mol of H2O. ________________