Mole Lab. Introduction to The Mole Concept. Introduction. Although technically not a laboratory experiment, this activity certainly helps to drive home the main idea behind the mole. concept—that chemists can count out infinitesimally small particles by weighing.
• Follow the guidelines in the "Lab Notebook Policy and Format for Lab Reports" section of the lab manual to complete in your lab notebook the following sections of the report for this lab exercise: Title, Lab Purpose, Procedure and Data Tables. Purpose In this experiment you will synthesize the coordination compound tetramminecopper (II) sulfate Since the digital display of the balance is limited to 2 decimal places, you could report the mass as m = 17.43 ± 0.01 g. Suppose you use the same electronic balance and obtain several more readings: 17.46 g, 17.42 g, 17.44 g, so that the average mass appears to be in the range of 17.44 ± 0.02 g. Lab Session 5, Experiment 4: Law of Definite Proportions The law of definite proportions states that when two or more elements combine to form a given compound, they do so in fixed proportions by mass.
May 02, 2011 · An empirical formula of a chemical compound is the ratio of atoms in simplest whole-number terms of each present element in the compound. For example, Glucose is C 6 H 12 O 6; it’s empirical formula is CH 2 O. A hydrate is a compound that is chemically combined with water molecules.
Each student will prepare the lab notebook for the upcoming lab (purpose and data table) before being allowed to do the lab. Each student will also turn in a lab report—these will be due the following Monday by 2:40 after the lab was completed. Penalty for being late will be 10% per week up to 50%. Our scale was also not accurate to the 4th decimal, which would affect our results’ accuracy as well. Exemplar #2 – written by Orianna Olson Discussion of Theory In this lab we studied how to calculate the formula of a hydrate by heating cupric sulfate hydrate and periodically measuring its mass. May 30, 2011 · Mrs. Darling's Blog. Chem is try! Skip to content. ... Complete write up of CuCl2 Waste lab up to conclusion. ... Work on the Hydrate lab.