Question
Anila performed the following reactions between oxalic acid (H2C2O4) and Permanganate ion and measured the reaction...
Anila performed the following reactions between oxalic acid (H2C2O4) and Permanganate ion and measured the reaction time at a constant temperature:
MnO4-(aq) + H2C2O4(aq) --> MnO2(aq) + CO2(g) + (other products)
rate = k[MnO4-]x [H2C2O4]y
| Determination | Initial [MnO4-], mol/L | Initial [H2C2O4], mol/L | Elapsed time (Δt), s | Reaction rate, mol/L·s |
| 1 | 0.0230 | 0.120 | 224 | |
| 2 | 0.0230 | 0.240 | 111 | |
| 3 | 0.0460 | 0.240 | 110 |
a) (3 pts) Calculate the reaction rate of the determination 2, using reaction rate = -Δ[MnO4-]/Δt.
b) (3 pts) Determine the order (y) of the reaction with respect to H2C2O4 .
c) (4 pts) Calculate the rate constant, k, in this reaction.
d) (Bonus, +5 pts) Calculate the reaction rate for the reaction of MnO4- and H2C2O4 at the same temperature when the initial MnO4- and H2C2O4 concentrations are 2.34 x 10-3 mol/L and 5.42 x 10-1 mol/L, respectively.
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
A solution of permanganate is standardized by titration with oxalic acid (H2C2O4). It required 28.97 mL...
A solution of permanganate is standardized by titration with
oxalic acid (H2C2O4). It required 28.97 mL of the permanga- nate
solution to react completely with 0.1058 g of oxalic acid. The
unbalanced equation for the reaction is MnO4- (aq) + H2C2O4(aq)
----> Mn^2+ (aq) + CO2(g) What is the molarity of the
permanganate solution?
5a. Write the balanced reaction for the oxidation of oxalic acid (H2C2O4) by permanganate (MnO4-) under...
5a. Write the
balanced reaction for the oxidation of oxalic acid
(H2C2O4) by permanganate
(MnO4-) under standard
conditions. The products include carbon dioxide and
Mn2+.
5b.Draw and label
the electrochemical cell. Be sure to label all parts of the
picture, include concentrations where necessary.
5c. Calculate the
voltage of the cell.
At 400 K oxalic acid decomposes according to the reaction: H2C2O4(g)→CO2(g)+HCOOH(g) In three separate experiments, the...
At 400 K oxalic acid decomposes according to the reaction:
H2C2O4(g)→CO2(g)+HCOOH(g)
In three separate experiments, the intial pressure of oxalic acid
and final total pressure after 20,000 s is measured.
Experiment
1
2
3
P H2C2O4 at t = 0
65.8
92.1
111
PTotal at t = 20,000 s
96.4
135
163
Find the rate law of the reaction.
At 400 oxalic acid decomposes according to the
reaction:
In three separate experiments, the intial pressure of oxalic acid
and final total...
Oxalic acid can donate two protons to water in successive reactions: (1) H2C2O4(aq)+H2O(l)⇌H3O+(aq)+HC2O4-(aq) (2) HC2O4-(aq)+H2O(l)⇌H3O+(aq)+C2O42-(aq) If...
Oxalic acid can donate two protons to water in successive
reactions:
(1) H2C2O4(aq)+H2O(l)⇌H3O+(aq)+HC2O4-(aq)
(2) HC2O4-(aq)+H2O(l)⇌H3O+(aq)+C2O42-(aq)
If Kc1 = 5.9 × 10-2 andKc2 = 6.4 × 10-5 at 25°C, what is the value
of Kc for reaction (3)?
(3) H2C2O4(aq)+2H2O(l)⇌2H3O+(aq)+C2O42-(aq)
A) 9.2 × 102
B) 1.1 × 10-3
C) 5.9 × 10-2
D) 3.8 × 10-6
Why is C not the right answer? Does Hess's Law not apply in this
problem?
Determining reaction rates? In my book part A is given and I have to figure out...
Determining reaction rates?
In my book part A is given and I have to figure out part B. What
would be the equations steps needed to solve? I tried a few but am
Unsure if they are done properly.
A. Determination of Reaction Times
molar concentration of Na2S2O3(mol/L): 0.02
Volume of Na2S2O3(L): 0.001
ambient temp(oC): 25
molar concentration of KI (mol/ L) 0.3
molar concentration of H2O2 (mol/L) 0.1
Total kinetic volume of kinetic trial (mL): 10
Time for color...
1. A constant electric current flows for 3.35 h through electrolytic cells connected in series. One...
1. A constant electric current flows for 3.35 h through
electrolytic cells connected in series. One contains a solution of
AgNO3, and the second contains a solution of
CuCl2. During this time, 1.80 g of silver is deposited
in the first cell.
(a) How many grams of copper are deposited in the second
cell?
g Cu
(b) What is the current flowing in (in amperes) ?
A
2. Oxalic acid (H2C2O4) is
present in many plants and vegetables.
(a) Balance...
The following data was collected for the reaction of ammonium ion and nitrite ion: Reaction data...
The following data was collected for the reaction of ammonium
ion and nitrite ion:
Reaction data for the reaction of ammonium and nitrite ions in
water at 25 oC
NH4+(aq) +
NO2-(aq) -->
N2(g) + 2H2O(l)
Experiment Number
Initial Concentrations (M)
Initial Concentrations (M)
Observed Initial Rate of Reaction (M s-1)
NH4+
NO2-
1
0.0100
0.200
5.4 x 10-7
2
0.0200
0.200
10.8 x 10-7
3
0.0400
0.200
21.5 x 10-7
4
0.0600
0.200
32.3 x 10-7
5
0.200
0.0202...
For the reaction, A(g) + B(g) => 2 C(g), the following data were obtained at constant...
For the reaction, A(g) + B(g) => 2 C(g), the following data
were obtained at constant temperature.
Experiment
Initial [A], mol/L
Initial [B], mol/L
Initial Rate, M/min
1
0.10
0.10
2 x 10-4
2
0.30
0.30
5.4 x 10-3
3
0.10
0.30
1.8 x 10-3
4
0.20
0.40
6.4 x 10-3
Which of the following is the correct rate law for the
reaction?
1.
Rate = k[A][B]
2.
Rate = k[A]2[B]
3.
Rate = k[A]2[B]2
4.
Rate = k[A]
5....
For the reaction 2A + B = 2C + , the following data were measured at...
For the reaction 2A + B = 2C + , the following data were
measured at 100 C.
Experiement #
Inital [A] (mol/L)
Initial [B] (mol/L)
Initial Rate (mol/L*min)
1
0.300
0.150
3.58 * 10 ^ -3
2
0.500
0.150
6.01 * 10 ^ -3
3
0.300
0.350
1.91* 10 ^ -2
a) What is the order of the reaction?
b) Calculate the rate constant and indicate its units
The kinetics of the following second-order reaction were studied as a function of temperature: C2H5Br(aq)+OH−(aq)→C2H5OH(l)+Br−(aq) Temperature...
The kinetics of the following second-order reaction were studied
as a function of temperature:
C2H5Br(aq)+OH−(aq)→C2H5OH(l)+Br−(aq)
Temperature (∘C)
k
(L/mol⋅s)
25
8.81×10−5
35
0.000285
45
0.000854
55
0.00239
65
0.00633
Determine the activation energy for the reaction.
Determine the frequency factor for the reaction.
Determine the rate constant at 10 ∘C.
If a reaction mixture is 0.155 M in C2H5Br, and 0.260 M in OH−,
what is the initial rate of the reaction at 90 ∘C?
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 11 minutes ago
asked 11 minutes ago
asked 18 minutes ago
asked 18 minutes ago
asked 23 minutes ago
asked 27 minutes ago
asked 34 minutes ago
asked 34 minutes ago
asked 35 minutes ago
asked 43 minutes ago
asked 56 minutes ago
asked 1 hour ago