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Unformatted text preview: guo (rg27533) – Homework 6 – Sutcliffe – (52380) 1 This printout should have 20 questions. Multiplechoice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Avogadro’s number is really big. If you had 6.02 × 10 23 dollars, and could spend it at $1 billion (10 9 ) per second for the rest of your life (let’s say 80 years), approximately what percentage of your original money would you have left when you die? 1. 95% 2. 0% 3. 75% 4. 100% 5. 50% 6. 10% 7. 90% 002 10.0 points Which one has the greatest number of atoms? 1. All have the same number of atoms 2. 3.05 moles of water 3. 3.05 moles of CH 4 4. 3.05 moles of helium 5. 3.05 moles of argon 003 10.0 points If one electron weighs 9 . × 10 28 grams, what is the mass of one mole of electrons? 1. 9 . × 10 18 grams 2. 5 . × 10 23 grams 3. 5 . 4 × 10 4 grams 4. 5 . × 10 24 grams 5. 1 . 5 × 10 51 grams 004 10.0 points What is the molar mass for fluoxetine (C 16 H 16 F 3 NO), also known as Prozac circlecopyrt R ? 1. 281.3 g/mol 2. 295.3 g/mol 3. 279.3 g/mol 4. 297.1 g/mol 005 10.0 points Calculate the density of propanol C 3 H 8 O if you know that there are 1 . 069 × 10 25 molecules of propanol in 1.35 L....
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This note was uploaded on 04/27/2010 for the course CH 301 taught by Professor Fakhreddine/lyon during the Spring '07 term at University of Texas.
 Spring '07
 Fakhreddine/Lyon
 Chemistry

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