Exam1Review_Fall2011 - Chemistry 2070 Exam 1 Review 1. List...

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1 Chemistry 2070 Exam 1 Review 1. List important concepts, equations, relationships, and periodic trends below. In essence, create a short summary of the material covered on this exam.
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2 2. Hydrazine, ammonia, and hydrogen azide all contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00 g of nitrogen for each compound is 1.44 x 10 -1 g, 2.16 x 10 -1 g, and 2.40 x 10 -2 g, respectively. Show how these data illustrate the law of multiple proportions. 3. Consider an electron for a hydrogen atom in an excited state. The maximum wavelength of electromagnetic radiation that can completely remove (ionize) the electron from the H atom is 1460 nm. Determine the initial excited state for the electron (n= ? ).
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3 4. Calculate the (i) de Broglie wavelength (in nm) and (ii) uncertainty in the position for each of the following: a) An electron traveling at a velocity 15% the speed of light, with Δv= 0.100 m/s b) A 145 g baseball traveling at a speed of 168 km/hr, with Δv= 0.100 m/s
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This document was uploaded on 10/26/2011 for the course CHEM 207 at Cornell University (Engineering School).

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Exam1Review_Fall2011 - Chemistry 2070 Exam 1 Review 1. List...

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