Chem Written Assignment 3 graded .docx - Thomas Edison...

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Thomas Edison State College General Chemistry II with Labs (CHE-122)Section No.: Written Assignment 3: Chemical Kinetics October 2015 57/1001.Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appearance of products: (6 points)1.H2(g) + I2(g) → 2HI(g)2.5Br
2O]
∆ t2.Consider the reaction2NO(g) + O2(g) → 2NO2(gSuppose that at a particular moment during the reaction nitric oxide (NO) is reacting at the rate of 0.066 M/s.-61.At what rate is NO2 being formed? (3 points))
2.At what rate is molecular oxygen reacting? (3 points)
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3.The rate law for the reactionNH4+(aq) + NO2(aq) → N2(g) + 2H2O(is given by rate = k[NH+][NO2]. At 25ºC, the rate constant is 3.0 × 10–4/ M· s.Calculate the rate of the reaction at this temperature if [NH4+] = 0.26 Mand [NO2] = 0.080 M. (5 points) l)4

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