Prelab for Calibration of Volumetric Glassware Essay

1). matter a 50 mL Erlenmeyer flask. Make authentic the glassware is houseclean and free of all cracks or stars. Also, take note of the temperature of water, as ledger varies with temperature 2). Transfer a portion of the water to flask with a pipet and record the mass of flask with the water. Use this data to calculate how such(prenominal) water was transferred from the pipette to the flask. 3). reprise step two 4 times, ensuring the stay results are similar to the first trial. Use this data to calculate the call up amount of water transferred and the standard deviation between the data points. standardization of a 50 mL Buret1). Fill the burette with 50 mL of the temperature-equilibrated water. Be as precise as possible in order to obtain reliable data. If the volume changes over a termination of a few minutes, obtain a new buret. Be sure to obtain the temperature of the water as well. 2). Weigh a 125 mL Erlenmeyer flask with its stopper. Again, remove sure the flask is sanitary and has no cracks or stars. 3). At a rate of 20 mL/min, open the buret stopper and allow 10.00 mL of water to submerge into the flask. Remember to sealing wax off the flask as soon as the water boodle in order to minimize evaporation. 4). Using the technique of reading semilunar cartilages, record the volume reading for the buret to the hundreds place. The last significant trope may be an approximation.5). Weigh of the stopped Erlenmeyer flask with the water on a scale. Determine the quantity of water transferred from the buret by determination the mass difference from the flask with no water vs. the new weight. 6). Repeat the steps from three to five four more times for the rest volume of the buret and repeat the whole procedure again with a new 50 mL volume. Remember to record all data. Also, make sure to repeat data that is not duplicated correctly to ensure completed and precise results. 7). Use the correction data from table one in order to find the true volume of water transferred based on the temperature. Create tables of the recorded data as well as a plot of the correction data with the apparent volume with testing groundeled axis. get along Calculations 8). Dispose of all glassware and materials accordingly and clean up the lab area. HazardsNo harmful chemicals will be dealt with in this lab. The only pencil eraser hazard is to be cautious of broken or chipped glassware that may cut ones skin. Make sure to report any mutilated glassware to TA and accidents in the lab must be handled properly.