Lab Report: 250 Ml Beakers

To begin this experiment we first had to collect a sample of salt, sand, and calcium carbonate that had been placed in a numbered vial. Then we numbered one of the 250 mL beakers “Beaker 1” and recorded its weight using the electronic pan balance. After weighing the beaker 3.5 to 4 grams of the mixture had to be added and the exact weight of the beaker and the mixture had to be recorded. Then 50 mL of distilled water had to be added and the mixture had to be stirred for one minute before being poured through the filtration apparatus into another preweighed beaker called “Beaker number 2”. Not all of the substance would be easy to get out of beaker 1 so it had to be rinsed with 5mL of water and then the remainder had to be poured through the filtration apparatus into beaker 2.
When there was only 3-5 mL of liquid left in beaker 2 we had to place the watch glass over the top to avoid splatter and occasionally stir. Once the water evaporated we had to wait for beaker 2 to cool and then we had to be weigh it on the electronic pan balance. After weighing beaker 2 we had to shift our focus to the filter paper residue from beaker 1 and we place it onto a dry evaporator dish. Then we had to fill a graduated cylinder with 10 mL of 3.0 M HCL and it had to be poured slowly into the evaporator dish. Once the bubbles had stopped forming we had to decant the liquid into beaker 1 and then we used 5 mL of distilled water to rinse the rest of the sand out of the evaporating dish into beaker 1. The evaporating dish had to be dried so it was placed in the oven for 20 minutes and then weighed. After weighing NaCl we turned our attention to the washings that are in beaker 1. The washings had to be boiled for 5 minutes in beaker 1 to evaporate some of the washings but not all of the