Choose the best answer The rate constant for the reaction of persulfate - iodide reaction is 12.3 *102 M's. At certain time, the volume of thiosulfate needed to titrate 10.0 ml of persulfate solution is 15.0 ml. the volume of thiosulfate at the end of reaction is 35.0 ml. calculate the time (s)

Q: The first order rate constant for the decomposition of a certain hormone in water at 25C is 3.42 x…

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A: k = 8.84 L mol-1 s-1 initial concentration = 99.8 mol/L.

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Q: Suppose a reaction has an activation energy of 23.0 kJ/mol and rate constant of 0.37 h-1 at 15 oC.…

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A: According to Arrhenious equation,                                             rate constant of…

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Q: The rate constant for this first-order reaction is 0.300 s- at 400 °C. products How long, in…

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Q: A reaction of 0.066 M of A is heated at 800°C for 2.21 hours. Calculate the half-life of the…

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Q: The activation energy for the gas phase decomposition of dichloroethane is  207 kJ.…

A: Activation energy (Ea) = 207 kJ = 207×103 J Temperature (T1) = 715 K Rate constant (k1) = 0.000995/s…

Q: What is the rate of the reaction 2NO(g) + Br2 (g) → 2NOBr Given that the bromine concentration…

A: The reaction given is, => 2 NO(g) + Br2 (g) → 2 NOBr

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A: The explanation is given below:

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A: Given that the reaction follows a second order and the rate equation is,

Q: The rate constant for this first-order reaction is 0.330 s- at 400 °C. A products How long, in…

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Q: The dissociation of Benzene diazonium chloride is first reaction. The rate constant at 700 K is 6.20…

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Q: In a study to determine the rate of the following reaction: 2NO(g) + 0,(g) - 2NO,(g) the…

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Q: The first order rate constant for the decomposition of a certain hormone in water at 25 degrees C is…

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Q: long will it take for the concentration of A to decrease from 1.25 M to 0.221 for the second order…

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Q: In the decomposition of nitrogen pentoxide in the gaseous state at 35°C, Daniels and  Johnston found…

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Q: The activation energy for the gas phase decomposition of dichloroethane is 207 kJ. CH3CHCI,CH;=CHC1+…

A: We have to calculate the rate constant at 748 K.

Q: 5) After 75.909 seconds the concentration of A was reduced from 0.3398 M to 0.2206 M. What is the…

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Q: Decomposition of a compound at a temperature of 57.4 gave the following results tos 4280 885 174…

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Q: The slope of the line in Figure 2, the plot of In[H2O2] vs time, is -2.83x10-2 s-1. What is the rate…

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Q: 5. The measurement of reaction rates as a function of temperature provides information on the…

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A:

Q: The

A: We will calculate final concentration

Q: A first order reaction takes 20 minutes for 25% decomposition. Calculate the time when 75% of the…

A: The given data contains, The time required for 25% completion of reaction is 20 minutes. A=25A0=100

Q: Explain the difference between the average rate of reaction and the instantaneous rate of reaction.

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Q: At 25°C the rate constant for the first-order decomposition of a pesticide solution is 6.40 x 10-…

A: The concentration of the reactant at time 't' is given by,     [A]t = [A]oe-kt where, [A]o is the…

Q: The half-life for the second-order decomposition of HI is 15.4 s when the initial concentration of…

A: Given that the decomposition of HI is a second-order reaction.

Q: The thiosulfate ion (S2O32-) is oxidized by iodine as follows: 2S2O32- (aq) + I2 (aq) → S4O62- (aq)…

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Q: A reaction has an activation energy of 62 kJ mol-1 and the rate constant is 3.8 x 10-2 s-1 at 100…

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Q: A chemistry graduate student is studying the rate of this reaction: 2H,РО, (аg) — Р,0, (ag) +зн,о…

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Q: Calculate the value of the rate constant k. Round to two sig figs. Use the right unit system as well…

A: Rate law:The given reaction is,