210 fall 09 test 1

210 fall 09 test 1 - Chemistry 210 Exam 1 FALL 2009 FREE...

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Chemistry 210 Exam 1 FALL 2009 Version A FREE RESPONSE: Answer the following questions in the spaces provided. Show all work and express final answers with the correct number of significant figures and units to receive full credit. If you use exponential notation for your answer, you must use proper scientific notation. 1. (18 points) Carry out the following conversions. A) Convert 8.0 feet (ft) to meters. B) 7.22 x 10 –8 dm pm C) 815 kg of CO 2 molecules D) An unknown mineral has a density of 3.95 oz/in 3 . What is that density in g/cm 3 ? 2. (16 points) Provide the names or formulas of the following compounds: Na 3 P ClO 3 Cr(NO 3 ) 3 KHSO 4 ammonium sulfate magnesium phosphite tin (IV) hydroxide Lithium periodate
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3. (10 points) An aluminum ore is 37.2 % aluminum metal by mass. What length (in meters) of aluminum sheet metal that is 1.50 m wide and 1.20 mm tall could be prepared from 575 kg of the aluminum ore? Sheet metal is the shape of a box . 4.
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This note was uploaded on 09/19/2011 for the course CHEM 51423 taught by Professor Martinovic during the Spring '10 term at Skyline College.

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210 fall 09 test 1 - Chemistry 210 Exam 1 FALL 2009 FREE...

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