{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chem 207 Lab writeup 4

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

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Stoichiometry and the Ideal Gas Law
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
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: P Total = P H2O + P N2 was used to find P N2 751.6 – 25.2 = P N2 = 726.39mmHg Since the pressure was needed in atmospheres, 726.39mmHg was converted atmospheres.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern