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Unformatted text preview: If the barometric pressure in the lab is 747 mmHg and the temperature of the nitrogen gas is 22.3 o C, what is the pressure of the nitrogen gas? 6. There are two ways in which the volume of nitrogen gas produced in this experiment can be determined. One is by direct measurement of the volume of displaced water in the 600 mL beaker. The other is by determining the mass of the displaced water; this mass divided by the density of water gives the volume of water displaced. Which of these methods is more precise? Explain your reasoning. You should use the more precise method in your experimental procedure. 7. Why must the mass of the nitrite salt be determined in this experiment? How will you determine this mass? 8. Why is it important to react the nitrite salt solution in the vial with the sulfamic acid solution in small amounts? 9. Sketch out a tentative experimental procedure. This procedure need not be overly detailed; a few sentences or an outline should suffice....
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This note was uploaded on 01/19/2011 for the course CHEM 2007 at Cornell University (Engineering School).