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Some Midterm-1 Details

Some Midterm-1 Details - longest wavelength associated with...

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Midterm-1, CHEM 110, October 1 If there is a topic in the text that was not covered in class, it will not be on the exam. Also, please note that you are also not responsible for the “side historical stories”. Do, however, make sure to memorize the important equations that were posted earlier in the Selected Slides section. The midterm consists of 30 multiple-choice questions, which will be machine-scored. Bring a calculator, pencils for the computer card and, most importantly, your McGill ID card. Getting Ready For the Midterm Exam! 100456780 100456780
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100456780 100456780 100456780 100456780 CO 100456780 CO 100456780 CO
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COOL JOE CHEM 150 JOE COOL COOL JOE CHEM 150 JOE COOL SAMPLE MIDTERM QUESTIONS Which of the following particles has the
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Unformatted text preview: longest wavelength associated with it? 1. An electron (mass 9.109 x 10-31 kg) moving at one-fifth the speed of light 2. A proton (mass 1.673 x 10-27 kg) moving at one-fifth the speed of light 3. An electron (mass 9.109 x 10-31 kg) moving at one-tenth the speed of light. 4. A proton (mass 1.673 x 10-27 kg) moving at one-tenth the speed of light Answer • This question depends on the de Broglie relationship: & = h/mu • 1. & 1 = 5h/m e c • 2. & 2 = 5h/m p c • 3. & 3 = 10h/m e c > Ans. 1 (5h/m e c) • 4. & 4 = 10h/m p c > Ans. 2 (5h/m p c) • m e (9.109 x 10-31 kg) << m p (1.673 x 10-27 kg) • Therefore, & 3 > & 4 Ans. 3 is correct . Answer D & = n 2 a /Z u = h/m & Answer A...
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