Chem 207 Lab writeup 4 - Stoichiometry and the Ideal Gas...

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Stoichiometry and the Ideal Gas Law
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Results and Discussion : This experiment was done to determine the identity of a nitrate salt MNO 2 where M + is an alkali metal cation: Li + , Na + , K + , or Rb + . This was accomplished by dissolving it in water and reacting it with excess sulfamic acid. The equation PV = nRT was used. The Weight of the Container with and without the salt was taken. With Salt: 47.442g Without Salt: 46.318g Therefore, the weight of the salt was: 1.124g The Temperature of the nitrogen gas was the same as the water temperature in the Erlenmeyer flask: 26°C . Using table 4.1, the vapor pressure of the water at 26 ° was 25.21mmHg . The pressure in the room was 751.6mmHg which equals the total pressure. According to Dalton’s Law of Partial Pressures the total pressure of the gas will be equal to the partial pressure of nitrogen plus the partial pressure of water vapor. The formula:
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This lab report was uploaded on 04/06/2008 for the course CHEM 2070 taught by Professor Chirik,p during the Fall '05 term at Cornell University (Engineering School).

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Chem 207 Lab writeup 4 - Stoichiometry and the Ideal Gas...

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