CHM131 Homework chpt 3

CHM131 Homework chpt 3 - Review Assessment: Homework 3 User...

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Review Assessment: Homework 3 User Ellen Theriault Submitted 2/2/08 9:57 PM Name Homework 3 Status Completed Score 5.4 out of 6.6 points Instructions If typing an answer in the fill in the blank -and the answer needs to be scientific notation then you must use the carrot symbol and the following spaces: ie. 3.4 x 10^2. -and you are writing in a compound, since we can't write in subscripts type in the formula as written ignoring subscripts: ie. Al 2 O 3 should be typed in as Al2O3. -if it is asking for a numerical answer you do NOT have to type in units. -When calculating molar mass please use the periodic table on the front cover of your book Question 1 0.4 out of 0.4 points How many particles are in 0.3131 mol Fe 2 O 3 ? Selected Answer: 1.886 x 10 23 Fe 2 O 3 particles Correct Answer: 1.886 x 10 23 Fe 2 O 3 particles Question 2 0.2 out of 0.4 points The number of particles in a mole is known as [x] , which is numerically equal to [y] per mole.
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Specified Answer for: x Avogadro's number Specified Answer for: y 6.02 x 10^23 Correct Answers for: x
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This note was uploaded on 04/20/2008 for the course CHM 131 taught by Professor Mcguirk during the Spring '08 term at Central Mich..

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CHM131 Homework chpt 3 - Review Assessment: Homework 3 User...

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