CH 101 WAHW2

CH 101 WAHW2 - CH 101 WebAssign HW 2 Spring 2008 Dr. Ison...

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CH 101 – WebAssign HW 2 Spring 2008 Dr. Ison 1. /8 points | 1/5 submissions Last Response | Show Details All Responses Notes Caffeine: C 8 H 10 N 4 O 2 Consider the molecular formula for caffeine above. Using only whole numbers with no decimal point, 2 mol of caffeine has 16 mol of carbon, 8 mol of nitrogen, 20 mol of hydrogen, and 4 mol of oxygen. 2. /3 points | 3/5 submissions Last Response | Show Details All Responses Notes How many moles of atoms are present in 5 moles of Ca(CN) 2 25 moles. 3. /3 points | 1/5 submissions Last Response | Show Details All Responses Notes How many grams of nicotine (C 10 H 14 N 2 )contain 24.0 g N? mass C 10 H 14 N 2 = 138.86 g 4. /6 points | 1/5 submissions Last Response | Show Details All Responses Notes How many moles of TiCl 4 can be produced when 9.00 mol Ti react with 12.00 mol Cl 2 ? 6 mol TiCl 4 produced How many moles of each reactant are left over? Note that at least one must disappear. 3 mol Ti remain 0 mol Cl 2 remain 5. /6 points | 1/5 submissions Last Response | Show Details All Responses Notes
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What are the frequency and energy of a photon with a wavelength of 880 nm. Report your answers to three significant digits. = 3.41e+14
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CH 101 WAHW2 - CH 101 WebAssign HW 2 Spring 2008 Dr. Ison...

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