Analysis of alum, alk(so4)2•12h2o post-lab david danjul, chem ap, period 1-2, mobley procedure: part i melting point determination of alum. The synthesis and gravimetric analysis of alum by: omish samaroo introduction the purpose of this experiment is to synthesize the double salt alum, which has the formula kal(so 4 ) 2 •nh 2 o, where n is the number of waters of crystallization that are incorporated into its crystalline structure. Procedure in the analysis experiment, we returned to our now dried alum sample, where we packed our alum into a capillary tube and placed the tube inside a melting point apparatus once turned on, we observed the temperature at which the alum melted.
Lab report on synthesis of alum using aluminum 1 purpose: in this experiment, you will be converting the aluminum metal from a beverage can into the chemical compound potassium aluminum sulfate, kal(so4)2•12 h2o, commonly referred to as alum. Students analyze aluminum potassium sulfate (alum) using three techniques to determine its exact composition the following properties are determined: melting point, the moles of hydrated water per mole of alum and the percent sulfate in the compound. Can somebody please solve some of the calculations for my lab here are some of the results from the actual experiment mass of weighing paper for alum = 4962 g mass of weighing paper plus alum sample = 12855 g mass of empty heated and cooled crucible = 230721 g mass of crucible plus baso4 after first heating = 238452 g so what i need to find out are these calculations : percent so4^2- in.
Analysis of a hydrate part 1: approximately 05g of dry alum were pulverized with a mortar and pestle, and then packed into a capillary tube to a depth of about 1 cm a rubber band was used to fasten the capillary tube to a thermometer with the alum level with the bulb of the thermometer. The synthesis and gravimetric analysis of alum by: omish samaroo introduction the purpose of this experiment is to synthesize the double salt alum, which has the formula kal(so 4) 2 •nh 2 o, where n is the number of waters of crystallization that are incorporated into its crystalline structure by determining the percent of water by mass in the compound through gravimetric analysis, the.
Analysis of alum 158 after a compound has been synthesized, tests should be carried out to verify that the compound fonned is indeed the compound desired there are a number of tests that can be perfonned to verify that the compound is the one desired in experiment 15a,. Analysis of alum, alk(so 4) 2・12 h 2 o partner: cindy date: sep 15, 2011 purpose: the purpose of this experiment is to verify the identity of the alum by finding the. Introduction in the analysis portion of this lab, we determined the melting temperature as well as the water of hydration of samples of our synthesized alum in the previous class using these observations, we properly determined the chemical formula of the synthesized alum. Analysis of alum kal (so4)2 12h2o laayla muhammad 10/31/06 -11/01/06 purpose: to do several tests to determine if the resulting crystals are really alum, to use a thiele melting point tube to determine the melting point of synthesized sample of alum and to determine the amount of water in a synthesized sample of alum and also the percent sulfate in a synthesized sample of alum.
With the analysis of aluminum potassium sulfate classic lab kit for ap chemistry, students analyze aluminum potassium sulfate using different techniques to determine its exact composition and gain experience in gravimetric determination. 1 pulverize a small amount (about 05 g) of dry alum using a mortar and pestle 2 pack the alum in a capillary tube to a depth of about 05 cm 3 turn the tube so the open end is up and bounce the bottom of the tube on the desk 4 fasten the capillary tube to the thermometer with a rubber band. Lab report on synthesis of alum using aluminum 1 purpose: in this experiment, you will be converting the aluminum metal from a beverage can into the chemical compound potassium aluminum sulfate, kal(so4)2•12 h2o, commonly referred to as alum data and calculations: in this lab, a beverage can is used to get aluminum sheet and then, sheet is.
Preparation and analysis of alum 1 authors: d l mccurdy, v m pultz and j m mccormick last update: august 21, 2014 introduction one of chemistry’s goals is to be able to transform any set of substances (the reactants) to another set of substances (the products) through a chemical reaction.
An analysis of common alum to learn how to perform a quantitative chemical analysis to learn about the chemical and physical properties of substances to learn about precipitation reactions in this laboratory exercise we will analyze the common alum, or potassium aluminum sulfate.