I need help on this chemistry half life problem. please
help!!
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I need help on this chemistry half life problem. please
help!!
The half-life for a second...
+ Half-life for First and Second Order Reactions 11 of 11 The half-life of a reaction,...
+ Half-life for First and Second Order Reactions 11 of 11 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-Me the concentration falls from the initial concentration (Alo to A\o/2, after a second half-life to Alo/4 after a third half-life to A./8, and so on. on Review Constants Periodic Table 11/25 For a second-order reaction, the half-life depends on the rate constant and the...
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...
Please Help Zero Order - Correlation between Absorbance and Time (s) y = -0.0032x + 0.5967...
Please Help
Zero Order - Correlation between Absorbance and Time (s) y = -0.0032x + 0.5967 R2 = 0.9083 Absorbance 100 150 *200 250 Time (s) First Order - Correlation between In of absorbance and time (s) 100 150 200 250 In of Absorbance y = -0.013x R2 = 0.9 Time (s) Second Order- Correlation between 1/Absorbance and Time (s) y = 0.0733x - 1.1105 R2 = 0.8947 1/Absorbance 50 100 150 200 250 Time (s) 2. Calculate the rate...
I need help with both questions!!!! 3. Consider the second order reaction A → products. The...
I
need help with both questions!!!!
3. Consider the second order reaction A → products. The rate constant for the reaction at 25 deg C is 0.350 M's? If the initial concentration of A is 0.800 M, what is the concentration after 4 seconds? a) .165 M b) .197 M c) .377 M d) .400 M e) .454 M 4. A student records the concentration of 12 as a function of time and prepares the graphs shown below. What can...
Can you please solve the below questions? From chapter (half life, she’ll life, f’zero, first, second...
Can you please solve the below questions? From chapter (half
life, she’ll life, f’zero, first, second order reaction) please
explain in details with the calculations. Thanks!
3. A 5 gm/100 ml solution of drug X is stored in a closed test tube at 25°C. If the rate of degradation of the drug is 0.05 day-1, calculate the time required for the initial concentration to drop to (a) 50% (half -life) and (b) 90% ( shelf-life) of its initial value. 4....
6. Consider the reaction 3A - C. If the reaction is second order with a half-life...
6. Consider the reaction 3A - C. If the reaction is second order with a half-life of 20.00 hrs. Starting the reaction with an initial concentration of A as 0.75M, calculate the time required for the concentration to decrease to 0.25M (8 points)
Estimate the k for this reaction. (Last question on sheet) D'Youville College Chemistry 115 - Problem...
Estimate the k for this reaction. (Last question on
sheet)
D'Youville College Chemistry 115 - Problem Solving Chemistry Updated Spring 2016 Page 8 Half-lifes and order of reaction. The "reaction order" describes the dependence of rate on the concetration of a reactant. If the reaction is oth order, it's rate is independent of concentration, if it is 1st order, the rate is directly related to the concentration (ie. if the concentration is doubled, the rate will double), and if it...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k k and not on the reactant concentration. It is expressed as t1/2=0.693k t 1 / 2 = 0.693 k For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as t1/2=1k[A]0. A certain first-order reaction (A→products A → p r o d u c t s ) has a rate constant of 9.30×10−3...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k...
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 t 1/2 = 0.693 k For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as t 1/2 = 1 k[A ] 0 Part A A certain first-order reaction ( A→products ) has a rate constant of 9.90×10−3 s −1 at 45 ∘...
For a first-order reaction, the half-life is constant. It depends only on the rate constant k...
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 0.693 - 1/2K For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as 1/2 k(Alo Part A A certain first-order reaction (A>products) has a rate constant of 9.60x10 s-1 at45 C. How many minutes does it take for the concentration of the...
+ Half-life for First and Second Order Reactions 11 of 11 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-Me the concentration falls from the initial concentration (Alo to A\o/2, after a second half-life to Alo/4 after a third half-life to A./8, and so on. on Review Constants Periodic Table 11/25 For a second-order reaction, the half-life depends on the rate constant and the...
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...
Please Help
Zero Order - Correlation between Absorbance and Time (s) y = -0.0032x + 0.5967 R2 = 0.9083 Absorbance 100 150 *200 250 Time (s) First Order - Correlation between In of absorbance and time (s) 100 150 200 250 In of Absorbance y = -0.013x R2 = 0.9 Time (s) Second Order- Correlation between 1/Absorbance and Time (s) y = 0.0733x - 1.1105 R2 = 0.8947 1/Absorbance 50 100 150 200 250 Time (s) 2. Calculate the rate...
I
need help with both questions!!!!
3. Consider the second order reaction A → products. The rate constant for the reaction at 25 deg C is 0.350 M's? If the initial concentration of A is 0.800 M, what is the concentration after 4 seconds? a) .165 M b) .197 M c) .377 M d) .400 M e) .454 M 4. A student records the concentration of 12 as a function of time and prepares the graphs shown below. What can...
Can you please solve the below questions? From chapter (half
life, she’ll life, f’zero, first, second order reaction) please
explain in details with the calculations. Thanks!
3. A 5 gm/100 ml solution of drug X is stored in a closed test tube at 25°C. If the rate of degradation of the drug is 0.05 day-1, calculate the time required for the initial concentration to drop to (a) 50% (half -life) and (b) 90% ( shelf-life) of its initial value. 4....
6. Consider the reaction 3A - C. If the reaction is second order with a half-life of 20.00 hrs. Starting the reaction with an initial concentration of A as 0.75M, calculate the time required for the concentration to decrease to 0.25M (8 points)
Estimate the k for this reaction. (Last question on
sheet)
D'Youville College Chemistry 115 - Problem Solving Chemistry Updated Spring 2016 Page 8 Half-lifes and order of reaction. The "reaction order" describes the dependence of rate on the concetration of a reactant. If the reaction is oth order, it's rate is independent of concentration, if it is 1st order, the rate is directly related to the concentration (ie. if the concentration is doubled, the rate will double), and if it...
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 0.693 - 1/2K For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as 1/2 k(Alo Part A A certain first-order reaction (A>products) has a rate constant of 9.60x10 s-1 at45 C. How many minutes does it take for the concentration of the...
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