Reactivity of Halide Ions PURPOSE The purpose of this experiment is to observe the reactions of halide ions with different reagents by mixing them together. Materials 0.1 M AgNO3 0.1 M NaCl 0.1 M NaF 0.2 M KBr 0.2 M Na2S2O3 3% Starch Solution 4.0 M NH3 (aq) 5% NaClO (commercial bleach) 24 – well microplate thin – stemmed pipettes‚ 12 Safety DATA |PARTS |INITIAL MASS |FINAL MASS |CHANGE IN MASS | |
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Identification of Metallic Ions Peter Jeschofnig‚ Ph.D. Version 42-0160-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. obseRvations
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The Z Notation: A Reference Manual Second Edition J. M. Spivey Programming Research Group University of Oxford Based on the work of J. R. Abrial‚ I. J. Hayes‚ C. A. R. Hoare‚ He Jifeng‚ C. C. Morgan‚ J. W. Sanders‚ I. H. Sørensen‚ J. M. Spivey‚ B. A. Sufrin This edition first published 1992 by Prentice Hall International (UK) Ltd Published 1998 by J. M. Spivey Oriel College‚ Oxford‚ OX1 4EW‚ England c J. M. Spivey‚ 1989‚ 1992 All rights reserved. No part of this publication may be reproduced
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TITLE: THE EFFECT OF HEATING DIFFERENT SUBSTANCES INTRODUCTION: In this exercise‚ it was required to observe carefully what happened when certain substances were heated in a burner‚ and to note the appearance of the residue after heating. AIM: To observe the effects of heating different substances. MATERIALS: Hard glass test tubes Powered samples of Lead (II) nitrate Copper (II) sulphate Ammonium chloride Zinc sulphate Basic copper (II) carbonate‚ CuCO3. Cu(OH)2
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I. Title: Reaction of Metals II. Problem: The purpose of the experiment was to determine if and how different metals react to different solutions. III. Hypothesis: IV. Materials: Dropper‚ Beakers‚ wax pencil‚ Goggles‚ eight test tubes‚ a rack for the tubes‚ three strips of Zinc‚ two strips of Copper‚ three strips of Magnesium‚ steel wool‚ Lead nitrate‚ Silver nitrate‚ Copper sulfate‚ Magnesium chloride‚ Zinc chloride‚ Sodium chloride‚ and Potassium. V. Procedure: In tube 1 add five
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PAGE 1 MULTIPLE CHOICE 1. What is the ground-state electronic configuration of an oxygen atom (oxygen: atomic number 8)? (a) 1s22s12p5 (b) 1s22s22p4 (c) 1s12s12p6 (d) 1s22s22p2 2. Which of the following species has an atom that has an unfilled valence shell of electrons? (a) molecular hydrogen‚ H2 (b) hydroxide anion‚ HO- (c) boron trifluoride‚ BF3 (d) water‚ H2O 3. Which of the following compounds is a ketone? (a) CH3CH2COOH (b) CH3CH2CHO (c) CH3CH2CH2OH (d)
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Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The driving force for diffusion is You correctly answered: b. the kinetic energy of the molecules in motion. 2. In diffusion‚ molecules move You correctly answered: a. from high concentration to low concentration. 3. Which of the following dialysis membranes has the largest pore size? You
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Water Chemical formula- H2O State at room temperature- Liquid Colour- Clear Melting point- 0oC Boiling point- 100oC Water- good solvent and a range of substances will dissolve in it. What happens when a sugar lump dissolves in water? When the sugar dissolves... -The moving water molecules crash into the sugar particles -The sugar particles then break away from the crystal and into the water -The sugar and water particles then mix and diffuse evenly throughout. Copper sulphate-
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QUALITY CONTROL LABORATORY Mam Dawn Assay of HCL Aqueous Alkalimetry Direct titration 0.1N NaOH Methyl Red TS HCL + NaOH NaCl + H2O Assay of Diluted H3PO4 Aqueous Alkalimetry Direct titration 0.1N NaOH Thymolphthalein TS H3PO4 + 2NaOH Na2HPO4 + 2H2O Assay of H3BO3 Aqueous Alkalimetry Direct titration 0.1N NaOH Phenolphthalein TS H3BO3 H+ + BO2- + H2O
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Paragraph 1: Quartz‚ also known as SiO2‚ has a tetrahedral structure that is similar to FePO4 under normal circumstances. However‚ there is the presence of a few differences. For FePO4‚ it’s a cation is a transition metal‚ unlike silicon which is a metalloid. This study summarises the changes in structure of FePO4 over a range of temperatures. Quartz belong to the trigonal crystal system‚ but not considered to be part of the rhombohedral lattice system. Both α- quartz and β-quartz are chiral crystal
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