Solution :-
Given data :-
Rate constant k = 0.538 /s
initial concentration A0 = 0.867 mol/L
Formula for the first order half-life reaction :-
k = 0.693 / t 1/2
t 1/2 = 0.693/0.538
half -life of reaction t 1/2 = 1.29 s
Perform Rate Calculations Using Half Life Question The first order reaction 3A 2BChas rate constant 0.538...
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 ∘...
Perform calculations using Gay-Lussac's Law Question A gas in a sealed container has an initial pressure of 125 kPa at 25.0° C. If the pressure is increased to 150.0 kPa, what will the new temperature be? Report your answer with three significant figures. Use -273.15°C for absolute zero. Provide your answer below: degrees Celsius FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
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=0.693kt1/2=0.693k 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 Part A. A certain first-order reaction (A→products) has a rate constant of 3.00×10−3 s−1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A],...
1. What is the half-life of a first-order reaction with a rate constant of 1.90×10−4 s−1? Express your answer with the appropriate units. 2. What is the rate constant of a first-order reaction that takes 244 seconds for the reactant concentration to drop to half of its initial value? 3. A certain first-order reaction has a rate constant of 1.80×10−3 s−1. How long will it take for the reactant concentration to drop to 18 of its initial value?
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...
Perform dilution calculations Question How many milliliters of a 0.80 mM ammonium hydroxide solution are required to create 2.0 L of 0.20 mM solution? Do not include units in the answer. Your answer should have two significant figures. (Round to the nearest tenth.) Provide your answer below: FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
3a) What is the rate constant for a first order reaction if the initial rate of reaction is 0.418 M/s when the initial concentration of A is 0.7 M? Provide your answer to three (3) decimal places. 3d) If 0.76 mL of a 0.44 hypochlorite stock solution is added to the reaction that has a total volume of 23 mL, what is the concentration of OCl– in the reaction? Report your answer to three (3) decimal places.
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.
55) The rate constant for a first-order reaction is 0.54 s-1. What is the half-life of this reaction if the initial concentration is 0.33 M? 56) The rate constant for a zero-order reaction is 0.54 s-1. What is the half-life of this reaction if the initial concentration is 0.33 M? 57) The reaction that occurs in a Breathalyzer, a device used to determine the alcohol level in a person's bloodstream, is given below. If the rate of appearance of Cr2(SO4)3...