The Use of Volumetric Glassware.docx

The Use of Volumetric Glassware.docx - Experiment No 2 The...

This preview shows page 1 - 3 out of 6 pages.

Experiment No. 2 - The Use of Volumetric Glassware Chem 1411 P11 South Texas College Spring 2018 For: Dr. Subrata Mandal
Image of page 1

Subscribe to view the full document.

Objective: The purpose of this experiment is to provide awareness about several types of volumetric glassware such as the graduated cylinder, pipet, and buret. Each instrument is marked with graduated measurements that indicate capacity of volume. What differentiates these instruments from one another is precision and shape. What they have in common is the ability to measure the volume of a liquid. Materials Used: Safety Goggles Graduated Cylinders Pipet and Safety Bulb Buret and Clamp Beakers Distilled water Summary of Procedures: The Graduated Cylinder: In this experiment, 4 prefilled graduated cylinders of 4 varied sizes and colors were obtained. A 10-mL prefilled with a pink solution, 25-mL prefilled with a blue solution, 50-mL prefilled with a blue solution, and a 100-mL prefilled with a green solution. To determine the volume of each liquid, use the meniscus, and record the measurements found to the level of precision of each graduated cylinder. The next step to this experiment is to obtain a clean and dry 25-mL graduated cylinder and 50-mL beaker. Weigh the mass of the graduated cylinder and beaker to the nearest milligram. Obtain 100-mL of distilled water and ensure that the meniscus marks at the 25-mL calibration mark. Fill the 50-mL beaker up to the 25-mL mark with distilled water as well. Weigh the filled graduated cylinder and beaker to the nearest milligram and calculate the mass of the water in each. Use the Density of Water at various temperatures table from the appendix to determine the density, and then calculate for the volume of water present in each. Compare the calculated volume of water to the observed volume of water determined from the calibration marks on the gradated cylinder and beaker. The Pipet: In this experiment a clean and dry 25-mL pipet with a safety bulb and a 150-mL beaker will be obtained. Weigh the empty beaker and record to the nearest milligram. Fill an Erlenmeyer flask with 100-mL of distilled water and determine the temperature. Using the pipet and safety bulb pipet 25-mL of distilled water from the flask to the beaker. Weigh the filled beaker to determine
Image of page 2
Image of page 3

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