{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

exp02 - Experiment#2 Separation and Analysis of a Ternary...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Experiment #2: Separation and Analysis of a Ternary Mixture xxxxxx 9/27/2006 Section x Purpose The purpose of the lab was to separate three individual materials from a mixture of solids. We then needed to find the percent mass composition of the mixture. Experimental Methods To begin the experiment we first put the empty crucible over the Bunsen burner so that any impurities could be removed. After letting it cool, the empty crucible had to be massed. While on the scale, we added as close to 2g of the mixture as possible. The mixture included sand (SiO 2 ), salt (NaCl), and NH 4 Cl. We put the crucible back above the Bunsen burner in order to sublime the NH 4 Cl in the mixture. The crucible and mixture without the NH 4 Cl was then weighed. Now, only salt and sand remained in the mixture. To isolate the sand, we did a triple wash with distilled water: each time with 5ml. The salt completely dissolved in the water, leaving us only sand that we needed to decant. In order to have somewhere to put the salt water solution, we massed another crucible, this time with a lid. We carefully decanted the sand by pouring the salt water into the second crucible. The sand in the first crucible was then massed. Since every
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
Image of page 2
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