Rates of reaction are typically measured as the change of concentration per unit time. Some typical units of concentration are: M, mM, pM, uM, nM. Some typical units of time are: years, days, hr, s, ms, ps, us, and ns For each reaction, suggest a reasonable unit of measure for the rate of reaction. The combustion of gasoline. a. b. The transformation of organic material into crude oil. Chemical change involved with memory in the human brain. с. d. The rusting of an iron nail. Why would a scientist use nM/ps instead of M/s?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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B.
Rates of reaction are typically measured as the change of concentration per unit time. Some typical units of
concentration are: M, mM, pM, µM, nM. Some typical units of time are: years, days, hr, s, ms, ps, µs, and ns.
For each reaction, suggest a reasonable unit of measure for the rate of reaction.
a.
The combustion of gasoline.
b. The transformation of organic material into crude oil.
Chemical change involved with memory in the human brain.
с.
d.
The rusting of an iron nail.
9. Why would a scientist use nM/ps instead of M/s?
- 112 -
Transcribed Image Text:B. Rates of reaction are typically measured as the change of concentration per unit time. Some typical units of concentration are: M, mM, pM, µM, nM. Some typical units of time are: years, days, hr, s, ms, ps, µs, and ns. For each reaction, suggest a reasonable unit of measure for the rate of reaction. a. The combustion of gasoline. b. The transformation of organic material into crude oil. Chemical change involved with memory in the human brain. с. d. The rusting of an iron nail. 9. Why would a scientist use nM/ps instead of M/s? - 112 -
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