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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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.

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<Post Lecture Homework Chapter 07
* The Heisenberg Uncertainty Principle
A student is examining a bactenum.under the microscope: The E coli
bacterial cell has a mass of m - 180 fg (where a temtogram fg is
101 g) and is SWITFRING at a veloaity of v = 8.00 pum/s. with an
uncertainty in the velocity of 8.00 %. E coli bacterial cells are around
1 um ( 10 m) in length The student is supposed to observe the
bacterium and make a drawing However the student, having just
jeamed about the Heisenberg uncertainty principlo in physics class
complains that she cannot make the drawing. She claims that the
uncertainty of the baclerium's position is greater than the microscope's
viewing field, and the bacterium is thus impossible to locate
Part A
What is the uncertainty of the position of the bacterium?
Express your answer with the appropriate units.
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