summer 07 115practice final

summer 07 115practice final - 1 NAME: _ General Chemistry...

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NAME: ______________________ General Chemistry 115 FINAL Summer 2006 h = 6.63 x 10 -34 J . s 1 nm = 1 x 10 -9 m c = 3.00 x 10 8 m/s R H = 2.18 x 10 -18 J s of H 2 O = 4.184 J/g C R = 0.0821 L . atm/ K . mol = 8.314 J/ K . mol 1 L . atm = 101.3 J 1 atm = 760 torr Avagodro's number 6.022 x 10 23 E = h ν, λ = h/m v c = ν λ, PV = nRT M = dRT/P M 1 V 1 = M 2 V 2 1. How many grams in 3.90 mole iron (III) carbonate? a. 1.14 x 10 3 g b. 667 g c. 215 g d. 382 g e. 591 g f. 7.83 x 10 3 g g. 78.4 g h. 6.89 x 10 2 g 2. An ionic compound contains Na , Cl and O. The exact percentages of each element are found to be 18.8 % Na ; 29.0 % Cl ; 52.2 % O . What is the name of this compound? Elements are written in this order Na ; Cl ; O. a. sodium perchlorate b. sodium hypochlorite c. sodium chlorite d. sodium chlorous e. disodium perchlorate f. sodium hypochlorous g. disodium chlorate h. sodium chlorate 3. Refer to this equation: 4 HCl (g) + O 2 (g) --------------> 2H 2 O (g) + 2Cl 2 (g) If 4 mole HCl reacts completely with a stoichiometrically equivalent amount of O 2 (i.e. there is enough O 2 ) and the reaction goes to completion , what is work? Temperature = 200 degrees C. a. 3.93 kJ b. -4.83 x 10 2 kJ c. 2.11 kJ d. 7.30 kJ e. -0.352 kJ f. -6.09 kJ 1
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g. 7.03 x 10 -1 kJ h. -1.62 x 10 2 kJ 4. How many grams in 1.00 x 10 5 P 4 molecules ? a. 2.06 x 10 -17 g b. 8.22 x 10 21 g c. 5.66 g d. 6.25 x 10 24 g e. 1.04 x 10 -18 g f. 6.28 x 10 -4 g g. 85300 g h. 1.01 x 10 -13 g 5. What is the volume of a gas balloon filled with 4.00 moles of helium when the
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This note was uploaded on 05/04/2008 for the course CHEM 115 taught by Professor Blank during the Spring '08 term at Rutgers.

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summer 07 115practice final - 1 NAME: _ General Chemistry...

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