WA03_CHE-122 - Name College ID Thomas Edison State University General Chemistry II with Labs(CHE-122 Section no Semester and year Written Assignment 3

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

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Name: 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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