WA03_CHE-122 - Name College ID Thomas Edison State...

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Name: College ID: Thomas Edison State University General Chemistry II with Labs (CHE-122) Section no.: Semester and year: Written Assignment 3: Chemical Kinetics Answer all assigned questions and problems, and show all work. 1. Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appearance of products: (6 points) a. H 2 ( g ) + I 2 ( g ) → 2HI ( g ) b. 5Br ( aq ) + BrO 3 ( aq ) + 6H + ( aq ) → 3Br 2 ( aq ) + 3H 2 O( l ) (Reference: Chang 13.5) The rate of disappearance of reactant has negative sign The rate of disappearance of reactant can be expressed as followed: A) Rate = -1 Δ[H 2 ] = - Δ[O 2 ] = 1 Δ[H 2 O] 2 Δt Δt 2 Δt 2. Consider the reaction 2NO( g ) + O 2 ( g ) → 2NO 2 ( g ) Suppose that at a particular moment during the reaction nitric oxide (NO) is reacting at the rate of 0.066 M/s. a. At what rate is NO 2 being formed? (3 points) b. At what rate is molecular oxygen reacting? (3 points) (Reference: Chang 13.7) 3. The rate law for the reaction NH 4 + ( aq ) + NO 2 ( aq ) → N 2 ( g ) + 2H 2 O( l ) is given by rate = k [NH 4 +
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  • Spring '15
  • Khurana
  • Chemistry, Kinetics, Chemical reaction, Rate equation, Edison State University

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