1. In the Rates of Chemical Reactions lab you measured the experimental rate of the following reaction: S208 +212 +2 SO4 Given a graph of moles S₂Og 2- consumed versus time (s) with a best fit linear line and a total volume of 325 mL for the reaction, explain how would you determine the rate of reaction?

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1. In the Rates of Chemical Reactions lab you measured the experimental rate of the following
reaction:
S208 +212 +2 SO4²
Given a graph of moles S₂Og 2 consumed versus time (s) with a best fit linear line and a total
volume of 325 mL for the reaction, explain how would you determine the rate of reaction?
2. The initial rates listed in the following table were determined for the reaction:
H2PO3 (aq) + OH (aq) →HPO3²¯ (aq) + H2O (1)
Trial
Initial [H₂PO3¯], (M) Initial [OH], (M)
Initial Rate of Consumption (M/s)
1
0.025
0.030
0.432
2
0.100
0.030
1.728
3
0.100
0.015
0.864
a) What is the rate law?
b) What is the value of the rate constant, k?
c) What is the initial rate when the initial concentrations of both reactants are 0.12 M?
3. The following experimental data was obtained for the bromination of acetone at 30°C.
21 +2 H+H2O2 → I2 + 2 H₂O
Trial
Initial [I] (M)
Initial [H+]
Initial [H2O2] (M)
Rate (M/sec)
(M)
1
0.001
0.005
0.001
2.0 x 104
2
0.002
0.005
0.001
4.0 x 10+
3
0.006
0.002
0.001
4.8 x 10+
4
0.006
0.004
0.001
9.6 x 10+
5
0.001
0.001
0.001
4.0 x 10-5
6
0.001
0.001
0.002
4.0 x 10-5
a) Determine the order with respect to each reactant.
b) Determine the overall order of reaction.
c) Write the rate law for the reaction.
d) Find the value of the rate constant, k.
Transcribed Image Text:1. In the Rates of Chemical Reactions lab you measured the experimental rate of the following reaction: S208 +212 +2 SO4² Given a graph of moles S₂Og 2 consumed versus time (s) with a best fit linear line and a total volume of 325 mL for the reaction, explain how would you determine the rate of reaction? 2. The initial rates listed in the following table were determined for the reaction: H2PO3 (aq) + OH (aq) →HPO3²¯ (aq) + H2O (1) Trial Initial [H₂PO3¯], (M) Initial [OH], (M) Initial Rate of Consumption (M/s) 1 0.025 0.030 0.432 2 0.100 0.030 1.728 3 0.100 0.015 0.864 a) What is the rate law? b) What is the value of the rate constant, k? c) What is the initial rate when the initial concentrations of both reactants are 0.12 M? 3. The following experimental data was obtained for the bromination of acetone at 30°C. 21 +2 H+H2O2 → I2 + 2 H₂O Trial Initial [I] (M) Initial [H+] Initial [H2O2] (M) Rate (M/sec) (M) 1 0.001 0.005 0.001 2.0 x 104 2 0.002 0.005 0.001 4.0 x 10+ 3 0.006 0.002 0.001 4.8 x 10+ 4 0.006 0.004 0.001 9.6 x 10+ 5 0.001 0.001 0.001 4.0 x 10-5 6 0.001 0.001 0.002 4.0 x 10-5 a) Determine the order with respect to each reactant. b) Determine the overall order of reaction. c) Write the rate law for the reaction. d) Find the value of the rate constant, k.
4. The tabulated data shows the concentration of AB versus time for the following reaction:
AB A+B
Using the following data and graph paper. Complete the following questions below:
Time, s
[AB], M
0
0.100
100
0.0971
200
0.0944
300
0.0917
400
0.0890
500
0.0865
600
0.0840
700
0.0816
800
0.0793
900
0.0770
1000
0.0748
1100
0.0727
1200
0.0706
1300
0.0686
1400
0.0666
1500
0.0647
a. Determine the order for the following reaction.
b. Determine the rate constant, k.
Transcribed Image Text:4. The tabulated data shows the concentration of AB versus time for the following reaction: AB A+B Using the following data and graph paper. Complete the following questions below: Time, s [AB], M 0 0.100 100 0.0971 200 0.0944 300 0.0917 400 0.0890 500 0.0865 600 0.0840 700 0.0816 800 0.0793 900 0.0770 1000 0.0748 1100 0.0727 1200 0.0706 1300 0.0686 1400 0.0666 1500 0.0647 a. Determine the order for the following reaction. b. Determine the rate constant, k.
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