CH101-Assignment 7

CH101-Assignment 7 - are present in 7.4 moles of...

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1. Check all of the following statements that are true. (Hint: you may wish to look at Section 5.1 of the text.) There is no partial credit for this question. most bond energies lie between 10 and 100 kJ/mol most bond lengths lie between 100 and 300 pm (1 and 3 Angstroms) the bond length is the distance that the orbital on one atom penetrates into the orbital on the second atom (distance of orbital overlap) the bond length is the separation between the nuclei of bonded atoms the H-H bond is shorter and weaker than the I-I bond covalent bond formation lowers the overall energy of the system none of these statements are true 2. The proper name for the compound with the chemical formula BrCl 3 is: bromine trichloride bromine(III) chloride bromic chloride trichlorobromide bromous chloride bromine(III) trichloride 3. a) What is the molar mass of the sedative allobarbital : C 10 H 12 N 2 O 3 ? 208.216 b) How many moles of carbon
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Unformatted text preview: are present in 7.4 moles of allobarbital? 74 4. What is the mass of an Fe(NO 3 ) 3 sample that contains 4.1 moles of oxygen? Note: enter your response to one place past the decimal point. 110.2g 5. Determine the number of moles of hydrogen atoms present in 19.3 g of acetaminophen (tylenol), C 8 H 9 NO 2 . Enter your response to three places past the decimal point. 1.1491 6. Determine the number of grams of oxygen present in 17.5 moles of acetaminophen (tylenol), C 8 H 9 NO 2 . 560 7. How many moles of hydrogen are in a sample of the antiviral drug ganciclovir, C 9 H 13 N 5 O 4 , that contains 11.1 g of nitrogen. Enter your response to three places past the decimal point. 2.05 8. How many grams of carbon are in a sample of nitroglycerin, C 3 H 5 N 3 O 9 , that contains 30.5 mol of hydrogen? Enter your response to one place past the decimal point. 219.783...
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CH101-Assignment 7 - are present in 7.4 moles of...

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