Essays on Melting Point

Procedure: Take open end of capillary tube and tap it gently into sample. Take tin wipe and place over the opening. Gently tab it so the sample will funnel to the bottom of the tube. You may also use a graduated pipette to accomplish this. Now, place the capillary tube in the designated spot in…

Abstract The various methods available to synthesize aspirin lead to the need to examine and evaluate production efficiency and purity. The purpose of our experiment was to synthesize acetyl salicylic acid (aspirin) and then determine the relative purity of the synthesized sample by observing the melting point temperature range. The procedure performed in our experiment…

The aims of this lab are. as follows ; to understand what occurs at the molecular degree when a substance thaw ; to understand the primary intent of runing point informations ; to show the technique for obtaining the runing point of an organic substance ; and to explicate the consequence of drosss on the…

Experiment 2Date: 24 January 2006 Title:Crystallization of a Crude Sample Objective:Preparation of pure diphenyl via crystallization of crude diphenyl dissolved in ethanol. Structural Formula of Organic Substances Involved: DiphenylEthanol Apparatus:Round-bottom flask (100 mL), measuring cylinder (50 mL), conical flask (50 mL), filter flask, beaker (100 mL), stemless glass funnel, Hirsch funnel, capillary tube, long glass…

The pressure applied on one part of container with fluid is transmitted equally in all directions. V’ Pressure on one side is equal to the pressure on the other side of hydraulic press and lift Pascal Law: “The pressure exerted anywhere in a mass of confined liquid is transmitted undiminished in all directions throughout the…

EXPERIMENT 2: Recrystallization and Melting Point Recrystallization (or Crystallization) is a technique used to purify solids. This procedure relies on the fact that solubility increases as temperature increases (you can dissolve more sugar in hot water than in cold water). As a hot, saturated solution cools, it becomes supersaturated and the solute precipitates (crystallizes) out….

Deicer Analysis of MgCl2 Dalena Khothsombath *† Group Members: James Deringer, Jeff Tanaka, and Yang Zhao Group 3 “I pledge that this report, the data in it, and interpretations are my work, except where referenced. I have neither obtained nor given aid on this assignment outside of data discussions with my lab team. “ Signed_________________________________________…

Report- Identification of Substances by Physical Properties The purpose of this lab was to see how certain substances; Naphthalene, Toulene, and and 2 unknowns (one liquid, one solid) react with 3 different solvents. To identify the two unknowns, testing needs to be done to find the density of both the liquid and the solid, determine…

Introduction Paracetamol is a medication used to relieve fever, its chemical name is acetaminophen. Its molecular formula is CH3CONHC6H4OH and its molecular weight is 151. 2 g/mol. The melting point of pure compound is in the range of 169-172 ?. During lab Paracetamol medication was dissolved in water, purified and recrystallized again. The purpose of…

This document is a report on the synthesis of aspirin. The report will include a detailed procedure of how to synthesis aspirin and the apparatus required. It will show how to interpret the results obtained giving a percentage yield as well as determining the purity of the aspirin produced by means of its melting point,…