How is Lab Glassware Used Lab Report - How is Lab Glassware...

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

How is Lab Glassware Used? TA: Jershon Eager September 7, 2015 Chm 113 L10 Group Members: Caroline Paul Ian Dwyer William Hilton Nolan Vale
Introduction: In conducting this experiment, it was paramount to not only establish accuracy and precision, but maintain it. This was done using significant figures so as to establish the highest degree of accuracy of the item(s) measured and to promulgate that accuracy to precision over multiple measurements of the same item(s). Having been previously agreed upon, the measurements of mass were to be divided by the measurements of volume to yield the density of each item. This was to be understood as D=M/V. The aforementioned points were all used to measure, observe, and record the measuring and proper usage of laboratory glassware with the goal of discovering the most accurate and precise glassware available. Procedure: The equipment used in this experiment included a scale, a 25mL graduated cylinder, 50mL beaker, 125mL Erlenmeyer flask, and a 50mL Buret. Also use a clamp to measure the water accurately in the Erlenmeyer flask. Begin by using one of the particular glassware. Start with the 25mL graduated cylinder and measure it on the electronic scale without any liquid and substance inside of it. After pour the distilled water into the glass to the line at 25mL. Afterwards take the graduated cylinder and weigh it on the scale and then record that information. To make the correct calculations one must subtract the original mass of the container from the mass of the container of the water to find the mass of the water. Then find the density by dividing the mass by the volume. To find the actual correct density one must then measure the temperature of the water then look up the density of the water at that temperature in the appendix which is in the back of the lab manual. To find the percent error subtract the actual density by the measured density, divided by the actual density multiplied by 100 to find your percent error. Repeat these steps with each other type of glassware. With the Buret measure the water in the Buret but

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture