Dr. Raphael Shell created a concentration vs time graph for the following chemical reaction
Dr. Raphael Shell created a concentration vs time graph for the following chemical reaction: 2 AB2 〓 4 B + 2 A. He observed that it took one hour to complete the first half-life, 30 min to complete its second half-life and 15 minutes to complete the third half-life. Also, doubling or tripling the concentration of the reactant shows no effect on the rate of reaction.
a) Determine the (general or incomplete) RATE LAW for this reaction based on the information provided above.
b) Using the information gained from part a, Dr. Raphael Shell allowed reactant AB2 to decay for 32.6 minutes and determined that 15.2% of the reactant was consumed. If the initial concentration is 4.21 M, determine the amount that remains in concentration units. Next, determine the rate constant, k, for this reaction as well as its unit. Express time in seconds.
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Dr. Raphael Shell created a concentration vs time graph for the following chemical reaction
The half-life of a reaction, t1/2, is the time it takes for the reactant concentration [A]...
The half-life of a reaction,
t1/2, is the time it takes for the reactant concentration [A] to
decrease by half. For example, after one half-life the
concentration falls from the initial concentration [A]0 to [A]0/2,
after a second half-life to [A]0/4, after a third half-life to
[A]0/8, and so on. on. For a first-order reaction, the half-life is
constant. It depends only on the rate constant k and not on the
reactant concentration. It is expressed as t1/2=0.693k For a...
The half-life of a reaction, t1/2, is the time required for one-half of a reactant to...
The half-life of a reaction, t1/2, is the time required for one-half of a reactant to be consumed. It is the time during which the amount of reactant or its concentration decreases to one-half of its initial value. Determine the half-life for the reaction in Part B using the integrated rate law, given that the initial concentration is 1.85 mol⋅L−1 and the rate constant is 0.0016 mol⋅L−1⋅s−1 . Express your answer to two significant figures and include the appropriate units.
For the following reaction, the concentration of A and the amount of time required to decrease that concentration t...
For the following reaction, the concentration of A and the amount of time required to decrease that concentration to one-half of the initial concentration, (vz, are directly proportional. Therefore, a decrease in concentration of A shows a proportional decrease in the half life, tv2. A products What is the order of this reaction? 2 If the rate constant for this reaction is o.0493 M s-1at 400 C, what is the half-life of this reaction, given an initial concentration of 0.821...
Reaction Rates Assessment Question 04 Select all of the factors which affect the rates of chemical...
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I got all wrong please answer quick Determine the rate constant from the concentration-time dependence. Calculate...
I got all wrong please answer quick
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12.4. In a chemical reaction, the following concentration values of the reactant A were observed as...
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Help please CHEM 122 rate laws Tean Number: Names: versus time, Integrated Dr. Sushilla Knottenbelt): Concentration...
Help please
CHEM 122 rate laws Tean Number: Names: versus time, Integrated Dr. Sushilla Knottenbelt): Concentration following table: for the general reaction A orders. products for the different reaction Linear form-what should Half life equation be graphed, y vs x to get a straight line? What will the slope (m) be? The y-axis intercept? Reaction Rate form order integrated form Linear form-what Rate = k 2K x=t m--k I Rote In 2 k tın 2 Rate k[A m-K 2. The...
A decomposition reaction has a half-life that is directly proportional to the initial concentration of the...
A decomposition reaction has a half-life that is directly proportional to the initial concentration of the reactant. What is the order of the reaction? Geologists can estimate the age of rocks by their uranium-238 content. The uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life of 4.5 billion years. A rock is found to contain 83.4% of the amount of uranium-238 that it contained when it was formed. (The amount that...
The half-life of a reaction,
t1/2, is the time it takes for the reactant concentration [A] to
decrease by half. For example, after one half-life the
concentration falls from the initial concentration [A]0 to [A]0/2,
after a second half-life to [A]0/4, after a third half-life to
[A]0/8, and so on. on. For a first-order reaction, the half-life is
constant. It depends only on the rate constant k and not on the
reactant concentration. It is expressed as t1/2=0.693k For a...
For the following reaction, the concentration of A and the amount of time required to decrease that concentration to one-half of the initial concentration, (vz, are directly proportional. Therefore, a decrease in concentration of A shows a proportional decrease in the half life, tv2. A products What is the order of this reaction? 2 If the rate constant for this reaction is o.0493 M s-1at 400 C, what is the half-life of this reaction, given an initial concentration of 0.821...
Reaction Rates Assessment Question 04 Select all of the factors which affect the rates of chemical reactions. temperature stoichiometry of the reaction O nature of the reactants O contact between the reactants O concentration of the reactants O catalysts relative energy of the products and the reactants Reaction Rate Laws Assessment Question 04 If the reaction rate doubles when the concentration of a reactant is doubled, the reaction is order with respect to that reactant. Reaction Rate Laws Assessment Question...
I got all wrong please answer quick
Determine the rate constant from the concentration-time dependence. Calculate the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0654 M 18.4 s after the reaction starts and is 0.0112 M 82.9 s after the reaction starts. Answer: Suppose the half-life is 11.2 s for a first order reaction and the reactant concentration is 0.0811 M 30.4 s after the reaction starts. How many seconds after the start...
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12.4. In a chemical reaction, the following concentration values of the reactant A were observed as a function of time. t/s 0 60 120 180 240 300 [A]/(mg/L) 131 110 92 71 49 29 Determine the rate constant for this reaction.
Help please
CHEM 122 rate laws Tean Number: Names: versus time, Integrated Dr. Sushilla Knottenbelt): Concentration following table: for the general reaction A orders. products for the different reaction Linear form-what should Half life equation be graphed, y vs x to get a straight line? What will the slope (m) be? The y-axis intercept? Reaction Rate form order integrated form Linear form-what Rate = k 2K x=t m--k I Rote In 2 k tın 2 Rate k[A m-K 2. The...
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