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Author Question: How many half-lives are required for the concentration of reactant to decrease to 25% of its original value? (Read 67 times)

jrubin

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on: Nov 18, 2019

Question 1

Which of the following statements is FALSE?
◦ It is not possible to determine the rate of a reaction from its balanced equation.
◦ The average rate of a reaction decreases during a reaction.
◦ The rate of zero-order reactions is not dependent on concentration.
◦ The half-life of a first-order reaction is dependent on the initial concentration of reactant.
◦ None of the above statements is false.

Question 2

How many half-lives are required for the concentration of reactant to decrease to 25% of its original value?
◦ 2.5
◦ 1.5
◦ 1
◦ 2
◦ 3
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
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Marked as best answer by jrubin on Nov 18, 2019

softEldritch

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Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jrubin

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Reply 2 on: Nov 18, 2019
:D TYSM

diana chang

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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