Chemistry

Molecular Models Exercise

Molecular Models Exercise.In this lab period, you will be working with a ball-and-stick molecular models kit. The wooden balls represent atoms, and the sticks represent bonds. The short sticks are mostly used for bonds to H, while the long sticks are

1. What Are the Boiling Points & Freezing Points for the 3 Temperature Scales?

1. What are the boiling points & freezing points for the 3 temperature scales?.2. You can touch the aluminum pan of a TV. dinner after it has been taken out of the oven, but you will burn your hand if you touch the food it contains. Explain in terms of

Chemical Reactions/Enzymes Name:______

Chemical Reactions/Enzymes Name:______.1. A protein that speeds up the rate of a chemical reaction inside a cell is called a(n) enzyme.2. Which of the following statements about enzymes is NOT true?.a. Enzymes work best at a specified pH

The Energy Content of Fuels

Chemistry 51 Experiment 14.The Energy Content of Fuels.Fuels are substances that burn to give off a relatively large amount of heat. In an overall sense, such burning is simply a combustion reaction between the fuel and oxygen. How much heat is generated

Determination of Iron Content by Redox Titration

Determination of Iron Content by Redox Titration.Compounds containing iron in the +2 oxidation state can be analyzed by redox titration with a strong oxidizing agent. Potassium permanganate is a strong oxidizing agent that will react with iron(II) ion

Dead Chemists Society Poster Project

Solutions Problems: Chemistry 101

Solutions Problems: Chemistry 101A/B/L.1. You have 1.00 mol of sugar in 125.0 mL of solution. Calculate the concentration in units of molarity.2. You have a 2.50 M sugar solution. Calculate the number of moles of sugar in 300.0 mL of this solution

SC7 A: Explain the Process of Dissolving in Terms of Solute/Solvent Interactions

Solution Preparation Lab.Georgia Performance Standards.SC7 a: Explain the process of dissolving in terms of solute/solvent interactions.Observe factors that affect the rate at which a solute dissolves in a specific solvent.Express concentrations as molarity

Standard Operating Procedure

STANDARD OPERATING PROCEDURE.Dan Richter Soils Laboratory.Tran, T. S. and R. R. Simard. 1993. Mehlich III-Extractable Elements. In: M. R. Carter, Ed. Soil Sampling and Methods of Analysis. pp. 43-49.A. Title: Mehlich III Extractable Elements

The Geological Definition of the Term Mineral

Supplementary Readings on Minerals B 7.The Geological Definition of the Term Mineral.There are five characteristics that an Earth material must possess in order to be considered a mineral. Although what the book says is generally correct, I prefer my

The Polarity of Water Molecules Results in Hydrogen Bonding

Chapter 3 Review.The polarity of water molecules results in hydrogen bonding.A hydrogen bond forms when the oxygen of one water molecule is electrically attracted to the hydrogen of a nearby molecule.Hydrogen bonding between water molecules is the basis for water s unusual properties

ES 241 Advanced Elasticity Zhigang Suo

ES 241 Advanced Elasticity Zhigang Suo.Poroelasticity, or diffusion in elastic solids.Migration of matter in an elastic solid. A sponge is an elastic solid with connected pores. When immersed in water, the sponge absorbs water. When a saturated sponge

Mole Review Worksheet

Mole Review Worksheet Key. This is extra credit for the test!.SHOW WORK USE UNITS SHOW WORK USE UNITS SHOW WORK USE UNITS.1. Calculate the molar mass of H3PO4.2. How many moles are in 25.2 g of Mg?.3. How many atoms are there in 56 moles of silver?.4. How many atoms are in 17.1 grams of potassium?