Search results
People also ask
What temperature should volumetric glassware be calibrated?
What is volumetric glassware?
What temperature should a glass vessel be calibrated at?
What glass apparatus is used to measure the volume of a liquid?
Which glassware is used to measure volumes?
What is the Class A tolerance for volumetric glassware?
Jan 30, 2024 · Use the density for your temperature to calculate the volume of water delivered by your pipette in each determination, the mean volume, the standard deviation, and the 50% and 95% confidence limits for the mean.
By convention, volumetric glassware is always calibrated at 20 °C. Since the temperature at which you do the calibration may be somewhat different there is a small correction for the cubic coefficient of expansion of glass.
Jun 17, 2023 · Use various volumetric glassware. Use the density formula. Determine which volumetric glassware contains or delivers the most accurate volume. Determine the percent error. 1.2 Background. During the semester in the general chemistry lab, you will encounter various pieces of laboratory glassware.
Volumetric glassware is used to either contain or deliver liquids at a specified temperature. Glassware manufacturers indicate this by inscribing on the volumetric ware the initials TC (to contain) or TD (to deliver) along with the calibration temperature, which is usually 20°C 1 .
In addition, volumetric glassware is calibrated at a specific temperature, usually 20°C, but quite often it is used to deliver or contain volumes at a different temperature. These temperature variations make it necessary to adjust samples and/or standards to the calibration temperature before measurement, or to apply temperature corrections to ...
Jan 7, 2019 · Calibration of Volumetric Glassware – Volumetric glassware is calibrated by measuring the mass of a liquid (usually distilled or deionized water) of known density and temperature that is contained in (or delivered by) the volumetric ware.
Introduction. Volumetric glassware is a class of glass vessels that are calibrated to contain or deliver certain volumes of substances. Graduated cylinders, pipettes (also pipets), burettes (also burets) and volumetric flasks are examples as are beakers and Erlenmeyer flasks.