Erlenmeyer flask

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  • Method Of Titration

    first course of action was to gather the necessary lab equipment. These included a burette, four Erlenmeyer flasks, a stir plate, a stir rod, a sample of phenolphthalein, a sample of 1M Potassium Acid Phthalate, and finally a sample of 6M Sodium hydroxide. After obtaining these materials, the next course of action was to calculate how much 6M Sodium hydroxide was needed to have .5 liters of .1M Sodium hydroxide. The calculation outputted 8.3 milliliters of Sodium hydroxide. This output informed that it was necessary to obtain that desired concentration of Sodium hydroxide. The calculated 8.3 milliliters of Sodium Hydroxide was added to a 500 milliliter plastic bottle. After this step 490 milliliters of deionized water was added to the plastic bottle. After a careful amount of mixing the experimental process could finally appear to take shape. The water and Sodium hydroxide mixture was then added to the burette with a potassium acid phthalate sample. Then three drops of phenolphthalein, and a stir rod were put inside an Erlenmeyer flask underneath the burette. The Erlenmeyer flask was also placed on top of a stir plate. The stir plate was then turned on, and the initial volume of the Sodium hydroxide in the burette was recorded into the computer. The final big step was that the Sodium hydroxide was slowly added to the potassium acid phthalate. It continues to pour into the flask until it the sample was completely neutralized, and the phenolphthalein changed the color of…

    Words: 1611 - Pages: 7
  • Double Salt Lab Report

    They added about 20 mL of deionized water to the salt and stirred the solution until it dissolved. As it dissolved, the solution turned into a light blue color. Then to make sure that very little of the solution was left on the stirring rod, they rinsed it with more deionized water into the beaker. After thoroughly rinsing a 50-mL volumetric flask with deionized water, they transferred the solution into this flask and rinsed the 100-mL beaker with deionized water in order to ensure as much of…

    Words: 1556 - Pages: 7
  • Calorimetry Volume Lab

    water over all of the other measuring tools.In this lab, we measured water from pipettes including volumetric and graduated pipettes, graduated cylinders, erlenmeyer flasks, and beakers to figure out the mass and density. These measurements were then used to calculate the percent error. We completed these measurements by measuring the volume of the pipettes in milliliters, the initial mass of the beaker without water in grams, and the final mass of the beaker with water in grams. We did this…

    Words: 1166 - Pages: 5
  • Acid-Base Reaction Lab Report

    The neutralization capabilities of all four were evaluated using back titration. One 100 mL Erlenmeyer flask, four 50 mL Erlenmeyer flasks, and a tablet of commercial antacid were obtained. The antacid tablet tested was Alka-seltzer/Effervescent. First the tablet was crushed and dissolved in 100 mL of 0.15 M HCl solution in the 100 mL Erlenmeyer flask. CO2 (aq) is a common product that can act as a buffer during titration. Therefore CO2 was heated under the hood (which ensured that the…

    Words: 813 - Pages: 4
  • Antacid Analysis Lab Report

    however, we did have to calculate the average numerous times. For the first part the lab we had to dissolve the antacid. We had to crush the antacid and add it to a solution. We measured the mass of the flask and got 123.78 grams, in addition to that we also measured the mass of the flask with the antacid to get a mass of 123.95 grams. As we move on to the second part of part A my partner and I prepare HCl solution and record its molar concentration at 0.1 ml. We were also able to figure out…

    Words: 953 - Pages: 4
  • Above Time Vs Temperature Essay

    occurred here. In this case the degrees for before and after were taken when the thermometer rested on a value for a period of time however; it was observed that the thermometer still decreased even after a value rested for a few seconds, when values were recorded in the table the temperature could of possibly keep dropping by a degree of two without knowing. This meant that the temperature recorded differed from the truer value by a full degree causing inaccuracies resulting in a slight change…

    Words: 1881 - Pages: 8
  • Olyphant Elementary School Research Paper

    In September of 1969, I was five years old, and I started to attend kindergarten. This was the first school year for the newly organized Mid-Valley School District. The new proper name of our school was the Olyphant Elementary School, but we commonly referred to it as the Mid-Valley Elementary School in Olyphant. My classroom was in the part of the building that used to be the Olyphant Central School; the part that was dedicated in 1910. This was the same school building in which my…

    Words: 1251 - Pages: 6
  • Pah Lab

    Using a graduated cylinder, 10mL of the 0.05mM Procion red dye stock solution were obtained. Then, using a 5mL volumetric pipet, three 10mL volumetric flasks, and distilled water, the three dilutions were prepared. First, a 5mL volumetric pipet was used to put 5mL of the red dye stock solution into the first 10mL volumetric flask. Next, 5mL of distilled water was added to the first 10mL volumetric flask to create was dilution #1. For the second 10mL volumetric flask, 5mL of dilution #1 and 5mL…

    Words: 1911 - Pages: 8
  • Extraction Lab

    The extraction lab began with a .517g mixture of benzoic acid, p-nitroaniline, and azobenzene charged in a 125 mL Erlenmeyer flask mixed with 50 mL of Et2O. Once dissolved, the mixture is transferred the mixture into separatory funnel and begin acid extraction. 15 mL of 3 M HCl is added to the separatory funnel and inverted until a phase boundary is present. An additional 15 mL of 3 M HCl was then added and inverted again. The aqueous layer was removed through the separatory funnel and placed…

    Words: 528 - Pages: 3
  • Vapor Pressure Research Paper

    Although they may be oddly shaped, volumetric and Erlenmeyer flasks are closed-end air columns, and they abide by the conventional rules of resonance. When a rubber stopper is inserted into a flask some air is forced out of the flask, and the stopper seals the flask so the air cannot get back in. This creates an area of low pressure within the flask. When the stopper is quickly pulled out of the flask, the air rushes back into the flask because the pressure of the atmosphere is higher than the…

    Words: 1243 - Pages: 5
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