practiceexam17 - City College Chemistry Department...

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Chemistry 10301, sections T, T2, T3, Prof. T. Lazaridis First Midterm exam, Oct. 2, 2007 Name (last name first): ____________________________________ I.D. Number: ____________________________________________ Workshop leader: ________________________________________ Note: There are 7 questions in this exam (check both sides of the sheet). Fill in your answer in the blank space provided immediately following each question. Half a point will be subtracted every time you report a numerical result with an incorrect number of significant figures. A copy of the periodic table is attached. Good luck! 1. a. (4) What is the chemical formula of aluminum hydroxide? Al(OH) 3 b. (4) What is the name of the compound CH 3 OH ? methanol c. (4) How many protons and electrons does the chloride ion have? 17 protons, 18 electrons d. (4) What is the molar mass of NaOH ? 22.99 + 16.00 + 1.008= 40.00
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practiceexam17 - City College Chemistry Department...

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