1. If the concentration of a reactant is tripled (all other things remain constant), and the...
1.
If the concentration of a reactant is tripled (all other things remain constant), and the reaction rate increases nine times, what is the reaction order with respect to the tripled reactant? Enter your answer as a number.
2.
If the concentration of a reactant is increased 1.5 times (all other things remain constant), and the reaction rate increases 2.25 times, what is the reaction order with respect to the reactant? Enter your answer as a number.
3.
If the concentration of a reactant is tripled (all other things remain constant), and the reaction rate remains constant, what is the reaction order with respect to the tripled reactant? Enter your answer as a number.
4.
When 29.0 mL of 0.220 M KIO3 is combined with 38.0 mL of H2SO3 and 50.0 mL of water, what is the resulting concentration of KIO3?
Homework Answers
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1.
If the concentration of a reactant is tripled (all other things
remain constant), and the...
1. A certain first order reaction has a rate constant of 0.036 min-1. How much of the reactant will remain if the reacti...
1. A certain first order reaction has a rate constant of 0.036 min-1. How much of the reactant will remain if the reaction is run for 2.5 hours and the initial concentration of the reactant is 0.31 M? 2. A certain first order reaction has a rate constant of 0.036 min-1. How much of the reactant will remain if the reaction is run for 2.5 hours and the initial concentration of the reactant is 0.31 M? 3. The rate constant...
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.
If the concentration of a particular reactant is doubled and the rate of reaction is cut...
If the concentration of a particular reactant is doubled and the rate of reaction is cut in half, what must be the order of the reaction with respect to that reagent? Enter your answer as an integer.
1.The reaction of hydrogen and nitric oxide, shown below, is first order with respect to hydrogen...
1.The reaction of hydrogen and nitric oxide, shown below, is first order with respect to hydrogen and second order with respect to nitric oxide. Write the rate law for this reaction. (Rate expressions take the general form: rate = k . [A]a . [B]b.) 2 H2(g) + 2 NO(g) → N2(g) + 2 H2O(l) The rate law for a general reaction involving reactant A is given by the equation rate = k[A]2, 2. Where rate is the rate of the...
Part B What was the initial reactant concentration for the reaction described in Part A? Express...
Part B What was the initial reactant concentration for the reaction described in Part A? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. Part C The reactant concentration in a first-order reaction was 6.60×10−2M after 20.0 s and 5.50×10−3M after 70.0 s . What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary,...
The integrated rate law allow chemists to predict the reactant concentration after a certain amount of...
The integrated rate law allow chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate law for a first-order reaction is: [A] = [A]oe -Rt Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial value. Then we could substitute Z" for [A] and rearrange the equation to: A) 1/2= 0093...
Kinetics. The rate constant for a particular second-order reaction is 0.47 M-1s-1. If the initial concentration...
Kinetics. The rate constant for a particular second-order reaction is 0.47 M-1s-1. If the initial concentration of reactant is 0.25 mol/L, what concentration will remain after 12.0 s? SHOW ALL WORK - SHOW ALL STEPS (WITH UNITS)
The integrated rate law allows chemists to predict the reactant concentration after a certain amount of...
The integrated rate law allows
chemists to predict the reactant concentration after a certain
amount of time, or the time it would take for a certain
concentration to be reached. The integrated rate law for a
first-order reaction is: [A]=[A]0e−kt Now say we are particularly
interested in the time it would take for the concentration to
become one-half of its initial value. Then we could substitute
[A]02 for [A] and rearrange the equation to: t1/2=0.693k This
equation calculates the time...
Most of the time, the rate of a reaction depends on the concentration of the reactant....
Most of the time, the rate of a reaction depends on the
concentration of the reactant. In the case of second-order
reactions, the rate is proportional to the square of the
concentration of the reactant.
Select the image to explore the simulation, which will help you
to understand how second-order reactions are identified by the
nature of their plots. You can also observe the rate law for
different reactions.
In the simulation, you can select one of the three different...
2. When using the method of initial rates to determine the reaction order of each individual...
2. When using the method of initial rates to determine the reaction order of each individual reactant, why must data only be used in which one reactant is changing concentration but not the other reactants? 3. Briefly explain why the number of total drops being mixed in each experiment is kept constant throughout all five experiments. 4. Sketch a molecular‐level picture that illustrates why reaction rate increases when the concentration of a reactant is increased. Note – this might be...
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.
The integrated rate law allow chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate law for a first-order reaction is: [A] = [A]oe -Rt Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial value. Then we could substitute Z" for [A] and rearrange the equation to: A) 1/2= 0093...
The integrated rate law allows
chemists to predict the reactant concentration after a certain
amount of time, or the time it would take for a certain
concentration to be reached. The integrated rate law for a
first-order reaction is: [A]=[A]0e−kt Now say we are particularly
interested in the time it would take for the concentration to
become one-half of its initial value. Then we could substitute
[A]02 for [A] and rearrange the equation to: t1/2=0.693k This
equation calculates the time...
Most of the time, the rate of a reaction depends on the
concentration of the reactant. In the case of second-order
reactions, the rate is proportional to the square of the
concentration of the reactant.
Select the image to explore the simulation, which will help you
to understand how second-order reactions are identified by the
nature of their plots. You can also observe the rate law for
different reactions.
In the simulation, you can select one of the three different...
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