practiceexam4 - City College, Chemistry Department...

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City College, Chemistry Department Chemistry 10301, sections L and L2, Prof. T. Lazaridis Second Midterm exam, Oct. 26, 2000 Name (last name first): ___________________________________ I.D. Number: ____________________________________________ Workshop leader: ________________________________________ Note: There are 9 questions in this exam (check both sides of the sheet). Fill in your answer in the blank space provided immediately following each question. One point will be subtracted every time you report a numerical result with an incorrect number of significant figures. The last sheet of this exam contains information that may or may not be needed to answer these questions. 1. a. (3) Will a nail made of iron dissolve in a calcium chloride solution? (Hint: use information provide on your data sheet) Iron is below calcium in the activity series . It will not dissolve b. (4) How many grams of glucose do you need to dissolve in 100 mL of water to make a solution of molarity 3.00 M? The molar mass of glucose is 180.2 g/mol. 3.00 mol/L X 0.100 L X 180.2 g/mol = 54.1 g c. (4) Write a balanced chemical equation for the neutralization of Ba(OH) 2 by hydrochloric acid. (You don't need to indicate the states of the reactants and products) Ba(OH) 2 (aq) + 2HCl (aq) --------> BaCl 2 (aq) + 2H 2 O (l) d. (4) What volume of a 14.8 M ammonia solution do we need in order
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This note was uploaded on 07/21/2011 for the course CHEM 111 taught by Professor Sawyers during the Spring '11 term at Virginia College.

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practiceexam4 - City College, Chemistry Department...

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