test 1 solutions

test 1 solutions - 3.091 Fall Term 2009 T est #1 Wednesday,...

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3.091 Fall Term 2009 Test #1 Wednesday, October 7, 2009 11:05 a.m. — 11:55 a.m. N a m e : Recitation Instructor: A complete test consists of 6 questions. Write your answers on these pages. State your assumptions and show calculations that support your conclusions. RESOURCES PERMITTED: PERIODIC TABLE OF THE ELEMENTS, TABLE OF CONSTANTS, AN AID SHEET (ONE PAGE 8½" × 11"), AND A CALCULATOR. NO BOOKS OR OTHER NOTES ALLOWED. USE OF WIRELESS COMMUNICATIONS DEVICES STRICTLY FORBIDDEN. #1 11% #2 16% #3 28% #4 14% #5 10% #6 21% TOTAL 100%
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3.091 Fall Term 2009 Test #1 page 2 Problem #1 (11%) Uranium metal can be produced by the reaction of uranium tetrafluoride (UF 4 ) with magnesium (Mg) in a sealed reactor heated to 700ºC. The by-product is magnesium fluoride (MgF 2 ). To ensure that all the magnesium is consumed in the reaction, the reactor is charged with excess UF 4 , specifically 10% more than the stoichiometric requirement of the reaction. To produce 222 kg of U, how much UF 4 must be
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This note was uploaded on 03/08/2010 for the course MATH 3.091 taught by Professor Sadoway during the Spring '09 term at MIT.

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test 1 solutions - 3.091 Fall Term 2009 T est #1 Wednesday,...

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