The decomposition of hydrogen peroxide is first order in H,02. The rate constant for this reaction at 20°C is 1.8 × 10-5s-1. If the starting concentration of H,O, is 0.75 M, determine (c) how long it will take for the H,0, concentration to drop to 0.375 M Note that 0.375 M is ½ of the starting concentration 0.75 M The time it takes for the reactant to get used up such that ½ of the original concentration is left is called the half-life. What is the first digit of the answer in seconds? A) 1 B) 2 C) 3 D) 4 E) 5
The decomposition of hydrogen peroxide is first order in H,02. The rate constant for this reaction at 20°C is 1.8 × 10-5s-1. If the starting concentration of H,O, is 0.75 M, determine (c) how long it will take for the H,0, concentration to drop to 0.375 M Note that 0.375 M is ½ of the starting concentration 0.75 M The time it takes for the reactant to get used up such that ½ of the original concentration is left is called the half-life. What is the first digit of the answer in seconds? A) 1 B) 2 C) 3 D) 4 E) 5
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter12: Chemical Kinetics
Section: Chapter Questions
Problem 50E: The decomposition of hydrogen iodide on finely divided gold at 150C is zero order with respect to...
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![The decomposition of hydrogen peroxide is first order in H202.
The rate constant for this reaction at 20°C is 1.8 × 10-5s-1.
If the starting concentration of H,0, is 0.75 M, determine
(c) how long it will take for the H,0, concentration to drop to 0.375 M
Note that 0.375 M is ½ of the starting concentration 0.75 M
The time it takes for the reactant to get used up such that ½ of the
original concentration is left is called the half-life.
What is the first digit of the answer in seconds?
A) 1 B) 2
C) 3 D) 4
E) 5](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3adda15d-6ce2-4d67-8f76-5c864ffc686f%2F29d504cc-ce35-4270-9675-9f791c2a7afb%2Fp94zfzh_processed.png&w=3840&q=75)
Transcribed Image Text:The decomposition of hydrogen peroxide is first order in H202.
The rate constant for this reaction at 20°C is 1.8 × 10-5s-1.
If the starting concentration of H,0, is 0.75 M, determine
(c) how long it will take for the H,0, concentration to drop to 0.375 M
Note that 0.375 M is ½ of the starting concentration 0.75 M
The time it takes for the reactant to get used up such that ½ of the
original concentration is left is called the half-life.
What is the first digit of the answer in seconds?
A) 1 B) 2
C) 3 D) 4
E) 5
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