Exam2rev_1710 - Review Exam 2...

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Unformatted text preview: Review Exam 2 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Determine the oxidation state of P in PO 3 3- . A) + 2 B) + 3 C)- 3 D) + 6 E) 0 1) 2) What element is undergoing reduction (if any) in the following reaction? Zn(s) + 2 AgNO 3 (aq) Zn(NO 3 ) 2 (aq) + 2 Ag(s) A) Ag B) Zn C) N D) O E) This is not an oxidation- reduction reaction. 2) 3) The titration of 80.0 mL of an unknown concentration H 3 PO 4 solution requires 126 mL of 0.218 M KOH solution. What is the concentration of the H 3 PO 4 solution (in M)? A) 0.138 M B) 0.343 M C) 0.0461 M D) 1.03 M E) 0.114 M 3) 4) What pressure will 2.6 x 10 23 molecules of H 2 exert in a 3.9 L container at 45C? A) 1.7 atm B) 3.4 atm C) 4.6 atm D) 5.7 atm E) 2.9 atm 4) 5) What volume will a balloon occupy at 1.0 atm, if the balloon has a volume of 7.6 L at 3.8 atm? A) 5.0 L B) 2.0 L C) 29 L D) 35 L E) 17 L 5) 6) What temperature must a balloon, initially at 25 C and 2.00 L, be heated in order to have a volume of 6.00 L? A) 993 K B) 75 K C) 403 K D) 894 K E) 655 K 6) 7) If a sample of 0.29 moles of Ar occupies 3.8 L under certain conditions, what volume will 0.66 moles occupy under the same conditions? A) 15 L B) 12 L C) 17 L D) 5.0 L E) 8.6 L 7) 8) A sample of gas initially has a volume of 859 mL at 565 K and 2.20 atm. What pressure will the sample have if the volume changes to 268 mL while the temperature is increased to 815 K? A) 9.83 atm B) 10.2 atm C) 15.3 atm D) 6.53 atm E) 1.05 atm 8) 9) A syringe contains 0.65 moles of He gas that occupy 750.0 mL. What volume (in mL) of gas will the syringe hold if 0.35 moles of Ne is added?...
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This note was uploaded on 07/10/2010 for the course CHEM 1710 taught by Professor Sasi during the Three '10 term at University of New England.

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Exam2rev_1710 - Review Exam 2...

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