CHEMISTRY EXPERIMENTS: For Advanced & Honors Programs

© Copyright 2014 James Signorelli.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by

any means, electronic, mechanical, photocopying, recording, or otherwise, without the written prior permission of the author.

ISBN: 978-1-4907-4643-2 (sc)

ISBN: 978-1-4907-4644-9 (e)

Library of Congress Control Number: 2014916347

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Contents

Introduction

LAB #1 Determination of the density

LAB #2 Investigating Avogadro’s First Law (N= SM/MM)

LAB #3 Paper Chromatography of Ink

LAB #4 Inverse Square Law

LAB #5 Determining Spectral Lines for Hydrogen

LAB #6 Decomposition of Sodium Bicarbonate

LAB #7 Formula of a Hydrate

LAB #8 Lead Iodide Lab

LAB #9 Calculating the Molar Mass of Two Gases

LAB #10 Chemical Reaction Rates

LAB #11 Ideal Gas Law – Expected Volume of a Gas

LAB #12 Enthalpy change for a double replacement reaction

LAB #12 Enthalpy change for a double replacement reaction

LAB #13 Determination of the Specific Heat Capacity of three pure metal samples

LAB #14 Melting Point behavior of a pure substance

LAB #15 Building a simple voltaic cell

LAB #16 Determination of the solubility of a compound in 100 ml of distilled water, at a constant temperature

LAB #17 Combustion of methyl alcohol

LAB #18 Calculating Absolute Zero

LAB #19 Titration of an acid solution

LAB #20 Single Replacement Reaction of Iron and Copper Sulfate

LAB #21 Observing the reaction rate of metals with water

LAB #22 Esterification

LAB #23 The Hydrolysis of an Ester

LAB #24 Decomposition of Sucrose

LAB #25 Acetylation of Salicylic Acid: Aspirin production

LAB #26 AP level Synthesis of Bakelite

LAB #27 The preparation of a polymer, Thiokol, a synthetic rubber

LAB #28 Determination of the diameter of a wire using density data

LAB #29 Measuring the Surface Tension of a Liquid

LAB #30 Analytical Chemistry

LAB #31 Formula of a precipitate (Advanced Placement version)

LAB #32 Laser Crystallography

LAB #33 Silly Slime

LAB #34 Properties of Carbon Dioxide gas

LAB #35 Properties of pure Hydrogen gas

LAB #36 Properties of pure Oxygen gas

Appendix

Gifted and talented students, and any student interested in pursuing a science major in college needs a rigorous program to prepare them, while they are still in high school. This book utilizes a format where the application of several disciplines: science, math, and language arts principles are mandated. Each lab concludes with either an essay or a detailed analysis of what happened and why it happened. This format is based on the expectations of joining a university program, or becoming an industrial science professional.

The ideal student lab report would be written in a lab research notebook, and then the essay or final analysis is done on a word processor, to allow for repeat editing and corrections. The research notebook has all graph pages a title section, and a place for the students and their assistants to sign and witness that exercise. The basic mechanics of the lab report: title, purpose, procedure, diagrams, data table, math & calculations, observations, and graphs are hand written into the book. The conclusion is done on a word processor (MS-Word) which allows the instructor to guide the student in writing and editing a complete essay, using MLA format. When the final copy is completed, the essay is printed and inserted into the lab notebook for grading.

At the end of the term, the student has all of their labs in one place for future reference. These lab notebooks can be obtained for as little as $ 3.00 per book. This is money well spent. In our district, the Board of Education buys the books for each student. The B.O.E. sees these books as expendable, (but necessary), materials for all science and engineering instruction.

Introduction

At the honors and advanced placement levels, chemistry requires several areas of rigor for total mastery by the student. The mathematics used in the chemistry program must be at a minimum skill level of first year algebra. The language arts skills must be at a level where MLA format for essay writing is the norm, and not the exception. Last, but not least, the master student must make clear and precise connections of the physical science skills, connecting the concepts of chemistry, physics, biology, and mathematics. Often, it is found, that physics and chemistry share the same principles and investigations. For this reason, chemistry is often called the Central Science.

The state departments of education are adopting what is called Next Generation Science Standards (NGSS). The proper use of language arts skills is mandated by these new regulations. The master student does not make one word or simple phrase answers. The advanced student is expected to write very clear, precise, and inclusive essays, covering all of the related topics of the concepts being investigated. This essay should be in a format called MLA (Modern Language Association). The English department at all high schools requires this level of writing and so should the science department. These state departments are also adopting Common Core Curriculum Standards (CCCS). The new regulations require a much higher level of rigor than in the past. To better prepare students for college, the states are mandating changes to science programs in the public schools which makes them more like prep schools.

This lab manual addresses these new regulations. It requires the chemistry student to perform lab experiments which, until a few years ago, were only done in college. The purpose of science is to discover the mysteries of the universe. If the student cannot write a clear explanation of what happened, with cause and effect relationships, then those concepts remain a mystery. Although it may be difficult, mastery of any topic becomes the reward for those who put forth the extra effort.

LAB #2

Investigating Avogadro’s First Law (N= SM/MM)

Purpose:

Amedeo Avogadro, an Italian Mathematician, determined that 602 Billion-Trillion atoms of a material would have the same mass as the value called the Atomic Weight from the periodic table. This lab will investigate that concept.

Diagram:

Draw or attach a photo of the equipment in set-up mode

Procedure:

.Obtain four different types of beans: Lima, Roman, Black-Eyed Peas, and Lentils

.Fill four 50 ml beakers with each of the four bean types. Make sure to top off each beaker.

.Weigh 15 beans and set aside (Set 1)*

.Weigh 15 more beans, and set aside. (Set 2)*

.Weigh 15 more beans and set aside (Set 3)*

.Add the total mass of the three sets and then divide by 45 or 90 to determine the average mass of one bean.          *Lentils are to have three sets of 30 beans per set

.Weigh all of the beans from the beaker, including the 45 or 90 already weighed.

.To predict the total number of beans in the 50 ml sample, divide the total mass of all of the beans by the average mass calculated in step 6

.Manually count the