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Post-Lab Questions 1. What effect did the nature of the ac id have upon the rate...
Lab Determination of a Rate Lavw Pre-Lab Questions 1. Determine the units of k for a...
Lab Determination of a Rate Lavw Pre-Lab Questions 1. Determine the units of k for a first order reaction by solving the rate expression for k, and then substituting time units in seconds and concentrations in moles/liter Repeat this determination for a second order reaction 2. If the S,O,- was omitted, would the blue-black color appear in the reaction mixtures? What is the reason for adding S,0,- in the determination of the rate of the reaction between I- and S...
2. In this experiment you will quantitatively measure a reaction rate of 5,0 2. with I...
2. In this experiment you will quantitatively measure a reaction rate of 5,0 2. with I in solu- tion to produce I, according to the following reaction: 5,0,- +21 slow -> 1, +2 SO,2- The color change is very sudden and dramatic when 2 x 10+ mol of I, is produced. The time required to produce 2 x 10 mol of I, can be measured accurately. rate of reaction. A A S,01 ΔΕ ΔΙ a) Write the rate law for...
f the concentration of a substance is tripled, what effect does it have on the rate...
f the concentration of a substance is tripled, what effect does it have on the rate if the order with respect to that reactant is (a) 0, (b) 1, (c) 2, (d) 3, and (e) ? 7. The following data were collected for the volume of O, produced in the decomposition of H,0, Time (s)ml On 0.0 0.0 45.0 2.0 88.0 3.9 131.0 5.8 Calculate the average rate of reaction for each time interval.
Part A The rate of the reaction in terms of the "disappearance of reactant" includes the...
Part A The rate of the reaction in terms of the "disappearance of reactant" includes the change in the concentration of the reactant, the time interval, and the coefficient of the reactant Consider the following reaction: 2A + 3B 3C + 2D The concentrations of reactant A at three different time intervals are given. Use the following data to determine the average rate of reaction in terms of the disappearance of reactant A between time=0s and time = 20 S....
Rate of reaction = -1/a delta[A]/delta t = - 1/b delta[B]/delta t = 1/c delta[C]/delta t...
Rate of reaction = -1/a delta[A]/delta t = - 1/b delta[B]/delta t = 1/c delta[C]/delta t = 1/d delta[D]/delta t The decomposition of a reactant, A, exhibits a linear relationship between l/[A] versus time with a slope of 0.0345 M^-1 s^-1. The initial concentration of A is 0.450 M. Note: If you cannot figure out a certain value, make an assumption and move on. Calculate the concentration of A after 63 minutes of reaction. Calculate the initial rate of reaction....
Solution 3. Initial [S, 0,2-) =0.050 M; initial [T"]=0.10 M. Time experiment started Time (s) between...
Solution 3. Initial [S, 0,2-) =0.050 M; initial [T"]=0.10 M. Time experiment started Time (s) between Total moles of Aliquor no. appearances of color Cumulative times (8) $20,2-consumed 12.0 2.0x10-- 4.0x10 134 6.0x104 8.0x10 10.x10- 12x10- 12 14x10 3 6 Solution 4. Initial [3,0,?'1-0.10 M; initial [T"]=0.025 M. Time experiment started Aliquot no Time (s) between appearances of color 189 Cumulative times (8) 189 1 2 3 Total moles of 5,92-consumed 2.0x10-- 4.0x10+ 6.0x10 8.0x10- 10.x10+ 12x10- 14x10- 208 209...
You and your lab partner are studying the rate of a reaction, A + B -->...
You and your lab partner are studying the rate of a reaction, A + B --> C. You make measurements of the initial rate under the following conditions: Experiment [A] (M) [B] (M) Rate (M/s) 1 0.2 1.9 2 0.4 1.9 (a) Which of the following reactant concentrations could you use for experiment 3 in order to determine the rate law, assuming that the rate law is of the form, Rate = k [A]x [B]y? Choose all correct possibilities. [A]...
In this lab we will be expressing rate as a change in concentration of reactants over...
In this lab we will be expressing rate as a change in
concentration of reactants over time. In order to calculate this,
we need to know the initial concentrations of our reagents after
they are combined but before the reaction occurs. This is a
dilution process. Recall that the calculation for a dilution is
accomplished using the relationship M1V1 = M2V2.
If the [S2O3 2- ] is initially 2.49x10-4 M, and the reaction
takes 145 seconds for the solution to...
Questions 1 & 2 DATA Dependence of Reaction Rate on Concentration Azk 13mLS20aen A. Temperature -...
Questions 1 & 2
DATA Dependence of Reaction Rate on Concentration Azk 13mLS20aen A. Temperature - △七ンmeasurenunt Initial Concentrations, M Elapsed S,O Time,s Experiment l Reaction Rate,Average M s Rate 0.04 D 2 D.DS 0.04 495 10.2 s10 Give the exact number below, unless it is within 5% of a whole number. Order of reaction with respect to Order ofreaction with respect to S2082 Overall order of reaction QUESTIONS om yourdaia for prts 12, and 3 in Part A, calculate...
5. Given the reaction OCT (aq) + I (aq) → OT (aq) + Cl(aq) tienis Rate...
5. Given the reaction OCT (aq) + I (aq) → OT (aq) + Cl(aq) tienis Rate = k1110017. Th The rate law for this reaction is Rate =k! . The overall reaction order and the [OH"] order with respect to OH are A) 2 and -1. B) O and -1. C) 0 and 1. D) 2 and 1. E) 1 and -1. 6. The following data were obtained for the hypothetical reaction 2A + B → products, [A] (M) [B]...
Lab Determination of a Rate Lavw Pre-Lab Questions 1. Determine the units of k for a first order reaction by solving the rate expression for k, and then substituting time units in seconds and concentrations in moles/liter Repeat this determination for a second order reaction 2. If the S,O,- was omitted, would the blue-black color appear in the reaction mixtures? What is the reason for adding S,0,- in the determination of the rate of the reaction between I- and S...
2. In this experiment you will quantitatively measure a reaction rate of 5,0 2. with I in solu- tion to produce I, according to the following reaction: 5,0,- +21 slow -> 1, +2 SO,2- The color change is very sudden and dramatic when 2 x 10+ mol of I, is produced. The time required to produce 2 x 10 mol of I, can be measured accurately. rate of reaction. A A S,01 ΔΕ ΔΙ a) Write the rate law for...
f the concentration of a substance is tripled, what effect does it have on the rate if the order with respect to that reactant is (a) 0, (b) 1, (c) 2, (d) 3, and (e) ? 7. The following data were collected for the volume of O, produced in the decomposition of H,0, Time (s)ml On 0.0 0.0 45.0 2.0 88.0 3.9 131.0 5.8 Calculate the average rate of reaction for each time interval.
Part A The rate of the reaction in terms of the "disappearance of reactant" includes the change in the concentration of the reactant, the time interval, and the coefficient of the reactant Consider the following reaction: 2A + 3B 3C + 2D The concentrations of reactant A at three different time intervals are given. Use the following data to determine the average rate of reaction in terms of the disappearance of reactant A between time=0s and time = 20 S....
Rate of reaction = -1/a delta[A]/delta t = - 1/b delta[B]/delta t = 1/c delta[C]/delta t = 1/d delta[D]/delta t The decomposition of a reactant, A, exhibits a linear relationship between l/[A] versus time with a slope of 0.0345 M^-1 s^-1. The initial concentration of A is 0.450 M. Note: If you cannot figure out a certain value, make an assumption and move on. Calculate the concentration of A after 63 minutes of reaction. Calculate the initial rate of reaction....
Solution 3. Initial [S, 0,2-) =0.050 M; initial [T"]=0.10 M. Time experiment started Time (s) between Total moles of Aliquor no. appearances of color Cumulative times (8) $20,2-consumed 12.0 2.0x10-- 4.0x10 134 6.0x104 8.0x10 10.x10- 12x10- 12 14x10 3 6 Solution 4. Initial [3,0,?'1-0.10 M; initial [T"]=0.025 M. Time experiment started Aliquot no Time (s) between appearances of color 189 Cumulative times (8) 189 1 2 3 Total moles of 5,92-consumed 2.0x10-- 4.0x10+ 6.0x10 8.0x10- 10.x10+ 12x10- 14x10- 208 209...
In this lab we will be expressing rate as a change in
concentration of reactants over time. In order to calculate this,
we need to know the initial concentrations of our reagents after
they are combined but before the reaction occurs. This is a
dilution process. Recall that the calculation for a dilution is
accomplished using the relationship M1V1 = M2V2.
If the [S2O3 2- ] is initially 2.49x10-4 M, and the reaction
takes 145 seconds for the solution to...
Questions 1 & 2
DATA Dependence of Reaction Rate on Concentration Azk 13mLS20aen A. Temperature - △七ンmeasurenunt Initial Concentrations, M Elapsed S,O Time,s Experiment l Reaction Rate,Average M s Rate 0.04 D 2 D.DS 0.04 495 10.2 s10 Give the exact number below, unless it is within 5% of a whole number. Order of reaction with respect to Order ofreaction with respect to S2082 Overall order of reaction QUESTIONS om yourdaia for prts 12, and 3 in Part A, calculate...
5. Given the reaction OCT (aq) + I (aq) → OT (aq) + Cl(aq) tienis Rate = k1110017. Th The rate law for this reaction is Rate =k! . The overall reaction order and the [OH"] order with respect to OH are A) 2 and -1. B) O and -1. C) 0 and 1. D) 2 and 1. E) 1 and -1. 6. The following data were obtained for the hypothetical reaction 2A + B → products, [A] (M) [B]...
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