Erlenmeyer flask

Methods Column chromatography was set up using a 60 ml syringe clamped to a ring stand. The syringe was plugged using a small amount of cotton. An Erlenmeyer flask was placed underneath the column to collect any excess material. Eleven 20 ml vials were labeled numbers 1 through 11. Silica gel was measured to 42 ml using a graduated cylinder and then moved into a 150 ml beaker. A slurry was created by adding 50 ml of hexane to the beaker containing the silica gel. The slurry was stirred for…

The filter paper traps the solid while a vacuum draws the liquid through the funnel into the flask. These methods aid in the synthesis of the artificial kidney stones in order to determine the kidney stones solubility. Methods: The three most common kidney stones, such as Calcium Oxalate (CaCl2 and Na2C2O4), Calcium Phosphate (Ca(NO3)2 and 2Na3PO4)…

of calcium chloride dihydrate is 2.8 grams. Materials: 2 Beakers (150 mL) Calcium chloride Sodium carbonate Stirring rod Electronic balance Goggles Graduated cylinder (10 mL) Distilled water Funnel Filter paper (12.5 cm) Scoopala Erlenmeyer flask (250 mL) Safety…

The purpose of this experiment was to evaluate the stoichiometric relationship between the testing agents and to identify the products formed. The relationship was found by completing three acid and base neutralization reactions using phosphoric acid, which is a triprotic acid, with different volumes of sodium hydroxide. Introduction When looking at the coefficient of balanced equations, stoichiometry is seen. Coefficients represent the number of moles, equivalent to the mass of an atom, of…

U-shaped glass tube was fished inside the graduated cylinder. The rubber stopper on the other end was then placed in the opening of the 50 mL Erlenmeyer flask after adding the substrate, hydrogen peroxide, and catalase/buffer. The reaction chamber, Erlenmeyer flask, was then swirled gently until 10 mL of O2 had been created, or nothing happened at all. Then the flask, beaker and cylinder were rinsed. This process was repeated for each part of the experiment using the different substrate…

: The chemical formula of a compound will be determined using the mass of each individual element that is present in a weighed sample of that compound. The chemical formula shows the proportions of elements in a specific compound. This proportion is uniform to all samples of the same compound. Using the mass of each element, the moles of the element in the compound can be found and then compared to that of the other elements. This will create our atom ratio which will lead to our mole ratio. The…

NTRODUCTION In this experiment the validity of Gas Laws were observed and the relationship of two variables, temperature and volume, against pressure was tested. Gas Laws are encompassed by the Ideal Gas Law in which PV=nRT observes the general behavior of a gas under ideal conditions in terms of pressure(P), volume(V), moles of gas(n), gas constant(R), and temperature(T). The Ideal Gas Law is a combination of Boyle 's Law, Charles ' Law and Avogadro 's Law and was first introduced in 1834 by…

sulfate heptahydrate, 2.586 grams of calcium acetate monohydrate, Analytical balance, 220 milliliters of deionized water, stir stick, two 100 milliliter glass beakers, one 250 milliliter glass beaker, filter paper, ring stand, glass funnel, and an Erlenmeyer flask. All of the materials listed above were obtained or taken into consideration before experimentation began. A piece of weight paper was placed on the analytical balance to provide a base for the substance and weighed. A random amount…

For example, when transferring the unknown samples from the weigh boats to the flasks, students could only use the smallest amounts of water possible. With small amounts of water used to transfer the reagent to an equipment, came the possibility of having a less than 100% transfer. And because a 100% reaction is dependent on a 100%…

The flask labeled “hexane” is filled with approximately 25 ml of hexane, and the one labeled “organic solvent” is placed under the column in order to collect the hexane. 10. Use a pipet to slowly add 1ml of hexane in increments to avoid any overflowing. 11. Keep adding and collecting the hexane until the yellow ferrocene reaches the bottom of the column bed, and immediately start to collect it in the sample vial labeled “F” 12. After all of the ferrocene has been collected, place the flask…