UB CHE 102LEC - 2017Fall-CHE102-E1-Practice-Ans (8 pages)

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2017Fall-CHE102-E1-Practice-Ans



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2017Fall-CHE102-E1-Practice-Ans

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Exam w/ answers


Pages:
8
School:
University at Buffalo-SUNY
Course:
Che 102lec - General Chemistry Lecture

Unformatted text preview:

CHEM 102 112 Exam 1 March 3rd 2017 1 hr 30 min 1 Fill in this cover sheet 1 On the Answer Sheet under Exam Information Test Version bubble in your version which is located next to your signed name on this cover sheet if not filled in your paper will not be graded 2 On the Answer Sheet under Student Information STUDENT ID write your 8 digit UB person number vertically bubble in the numbers Integrity Certification Sign your name stating you will not cheat on this exam NAME print your first name last name and your UBIT name from your email 3 Check that you have a complete examination 10 pages including Formula Sheet and Periodic Table Print your name on the top of every page of the Examination and hand in ALL pages when you are done 4 To answer a question fill in the circle on the bubble sheet that corresponds to the BEST answer You may use a pencil or a pen blue or black ink only and no felt tips If you decide to change your answer write an X over the incorrect answer fill in the new correct answer and write the letter for the correct answer to the left of the question number Questions with more than one answer marked and not written as stated above will be graded as incorrect The only answers accepted are those which appear on the bubble sheet There are 25 questions 4 points each Total possible points 100 PLEASE READ AND SIGN THE ACADEMIC HONESTY STATEMENT BELOW I hereby certify that the answers given represent my own unaided work Signed Test Version A Printed Name Person Number Day Time of Recitation Name of TA Recitation Code Name 1 Consider the following pairs of liquids Which pairs are miscible I II III Benzene C6H6 and Hexane C6H14 Water and Methanol CH3OH Water and Hexane A I II only B II only C I only D III only E I II III 2 What are the ideal van t Hoff factors for the following compounds BaF2 C6H12O6 K3PO4 NH4 2SO4 A B C D E 1 1 1 1 3 1 4 1 3 1 4 3 2 3 5 5 None of the above 3 A solution made by dissolving 9 81 g of a nonvolatile nonelectrolyte in 90 0 g of



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