In the first order reaction A---> products, [A] = 0.400 M initially and 0.250 M after...

Question

Question

In the first order reaction A---> products, [A] = 0.400 M initially and 0.250 M after 15.0 min. What is the value of the rate constant, k?

Answer 1

Answer #1

Given [A] ->Products (first order reaction) Initial concentration of A 0.400M Ao concentration afetr 15min 0.250MA time (t)-1

Answer 2

Similar Homework Help Questions

PRACTICE EXAMPLE B: The following data are obtained for the reaction = 0.210 M: products: !=0 min, [A] 0.250 M;...

PRACTICE EXAMPLE B: The following data are obtained for the reaction = 0.210 M: products: !=0 min, [A] 0.250 M; t 422 min, A 0.188 M, 10.61 min. A]0.150 M; t = A 14.48 min, : = 6.60 min, A (A] 0.114 M; i reaction and its rate constant, k? 18.00 min, [A] 0.083 M. What are the order of this Homework PRACTICE EXAMPLE A: In the decomposition reaction B following data are obtained: t Os, [B = 0.88 M;f...
The reaction A--> B is first order in A. Initially [A]= 0.800M and after 54 min.,...

The reaction A--> B is first order in A. Initially [A]= 0.800M and after 54 min., [A]=0.100M. At what time (in min.) is [A]=(2.0e-2)M?
In the first order reaction A → products, [A] = 0.398 mol/L initially and 0.185 mol/L...

In the first order reaction A → products, [A] = 0.398 mol/L initially and 0.185 mol/L after 17.0 min. What is [A] after 250 min, in mol/L?

d listing r. (Individ For a particular first-order reaction, it takes 24 minutes for the concentration...

d listing r. (Individ For a particular first-order reaction, it takes 24 minutes for the concentration of the reactant to decrease to 25% of its initial value, what is the value for rate constant (in S-1) for the reaction? A) 2.0-104 s-1 B)9.6 x 10-4 s-1 C) 1.2 × 10-2 s-1 D)5.8 102s-1 12. In the first order reaction A → products, [A1-0.400 M initially and 0250 M after 15.0 mun, what willl after 175 min? e A) 1.67-10-3 M...
[time] [Z] 4. Suppose the data shown are for the second order reaction: → products. What...

[time] [Z] 4. Suppose the data shown are for the second order reaction: → products. What is the value of the rate constant k? O min 50.000 atm 6.250 3.333 2.273. 5. For a first order reaction (G - products) with k = 0.173 min', suppose a chemist runs the reaction starting with an initial concentration [G]. = 12.0 M. a. How many minutes will it take for [G] to decrease to 4.70 M? b. What [G] will remain after...
The reaction A+B → products is of the first order with respect to the reagent A...

The reaction A+B → products is of the first order with respect to the reagent A and second order with respect to reagent B. A.) Write the speed law for reaction B.) What is the value of the constant of speed of the reaction C.) Complete the table Experiment (A) 1.00 M 2.00 M 2.00 M 0.200 M Velocity (m/s) 0.150 0.300 0.400 M

What is the concentration of A after 50.5 minutes for the second order reaction A →...

What is the concentration of A after 50.5 minutes for the second order reaction A → Products when the initial concentration of A is 0.250 M? (k = 0.117 M⁻¹min⁻¹)
The isomerization of methyisocyanide, CH2NC, to acetonitrile, CH3CN, is a first-order reaction. If 2.56 mg of...

The isomerization of methyisocyanide, CH2NC, to acetonitrile, CH3CN, is a first-order reaction. If 2.56 mg of CH3NC is present initially, and 1.89 mg is present after 474 min at 230 °C, what is the value of the rate constant, k? Assume the volume is constant. min-1
The reaction A+B → products is of the first order with respect to the reagent A...

The reaction A+B → products is of the first order with respect to the reagent A and second order with respect to reagent B. A.) Write the speed law for reaction B.) What is the value of the constant of speed of the reaction C.) Complete the table Experiment 1 (B) 0.200 M 1 IWNL (A) .00 M 2.00 M 2.00 M Velocity (m/s) 0.150 0.300 0.400 M

The rate constant for this second-order reaction is 0.400 M-'.5' at 300 °C. A products How long, in seconds, would...

The rate constant for this second-order reaction is 0.400 M-'.5' at 300 °C. A products How long, in seconds, would it take for the concentration of A to decrease from 0.770 M to 0.360 M? R. T U T O P F G H J K L NM <