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Exam 3 Practice - Chemistry Workshop 131 Exam 3 Practice Questions DO NOT WRITE ON THIS 1 How many moles of O2 are required to combust 2 moles of

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Chemistry Workshop 131 Exam 3 Practice Questions DO NOT WRITE ON THIS 1. How many moles of O 2 are required to combust 2 moles of CH 3 CH 2 CHO and how many moles of CO 2 do you produce? A. 2,2 (moles of O 2 , moles CO 2 ) B. 1.5,1 C. 3,2 D. 2,4 E. None Of The Above 2. When hydrogen peroxide is introduced into a solution of potassium permanganate the peroxide is reduced to molecular oxygen, which can be captured by a balloon. If the reaction is carried out at 1atm and 25 ° C, what will the volume of the balloon be if 15g of H 2 O 2 is combined with 105g of KMnO 4 ? 5 H 2 O 2 + 2 KMnO 4 + 3 H 2 SO 4 2 MnSO 4 + K 2 SO 4 + 5 O 2 + 8 H 2 O 3. A 2.00 L flask of nitrogen (N 2 ) gas at a pressure of 1.00 atm is separated by a stopcock from a 3.00 L flask of nitrogen gas at a pressure of 2.00 atm. Both compartments are at the same temperature. What is the pressure in the flasks if the stopcock is opened, assuming the temperature remains the same? A. 1.60 atm
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This note was uploaded on 07/15/2009 for the course CHE 131 taught by Professor Kerber during the Fall '08 term at SUNY Stony Brook.

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Exam 3 Practice - Chemistry Workshop 131 Exam 3 Practice Questions DO NOT WRITE ON THIS 1 How many moles of O2 are required to combust 2 moles of

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