Mat E 273 - Steel Examples
1 Consider the equilibrium (slow) cooling of two plain carbon steels with overall
compositions, C1 and C2 , of 0.20 wt% C and 2.0 wt% C, respectively. Compute the
following weight fractions for each alloy at a temperature just b
CHAPTER 1
Using Scientific Notation
Counting Significant Figures
Number
Significant
figures
Explanation
23.56
4
All nonzero digits are significant.
23.560
5
Trailing zeros are significant when a decimal point is shown.
1000
1
Trailing zeros are not consid
Valence Electrons (Group 1A VIII A) dont include transition metals
Electron dot structures dots are same as valence
Octet Rule: atoms to share or transfer electrons to obtain a stable config of 8 val eletrons
Ionic and covalent compounds - Atoms form Octe
Chapter 9
Activation Energy and Catalysis
The activation energy or activation barrier of a reaction is the amount of energy that must be exceeded
for a reaction to occur.
Reaction Rates
Equilibrium Constant
When a chemical reaction is at equilibrium, the
Balancing Different Types of Chemical Equations
A chemical equation is used to describe a chemical reaction. The reactants are written on the left,
and the products are written on the right. A reaction arrow; which often is a symbol such as ,
is used to i
Balancing Chemical Equations
Goals
Learn to balance chemical equations
Determine patterns in Chemical Reactivity
Avogadros Number and The Mole
Determine Formula Weights
Empirical Formulas
Limiting Reactants
Discussion
Stoichiometry is the study of qua
Lab 2: Math
Review Worksheet
Significant Figures, Factor Labeling, and Dimensional Analysis
Give the number of significant figures for each of the following measurements.
1.
2.
3.
4.
5.
2000 m
0.00672 g
17,000 cm
0.802 km
0.0090 L
Do the following calcula
Lab 1: Lab Safety
Introduction
The study of chemistry is a basic part of any science curriculum. Chemistry has developed
mainly through experiments, so an integral part of any chemistry course is the laboratory experience.
The laboratory should demonstrat
Lab 3: Measurement and Significant Figures
Goals
Identify metric units used in measurement such as gram, meter, centimeter, and
millimeter.
Correctly read a meter stick, a balance, and a graduated cylinder.
State the correct number of significant figures
Callister 9e
Practice Problem Answers
Fall 2016
Updated: 12-14-16
3.2
a = 0.121 nm
or
3
a = 1.21 10 28 m 3
3.5
APF BCC = 0.68
3.7
= 10.22 g/cm 3
3.8
= 2.59 g/cm
3.9
R = 0.138 nm
3.10
R = 0.143 nm
3.15*
BCC
3
3.35
a : [110]
b : [121]
c : [0 1 2]
d : [121
Non-Steady State Diffusion (Ficks 2nd Law) Examples
[Example 1] Calculate the Time Required for a Given Diffusion Process
A part made of low carbon steel has a uniform carbon concentration of 0.20 wt%.
Its surface is to be hardened by
Mat E 273 - Crystallography of Metals
Practice Problems
The universe is made of stuff. On the atomistic scale, the elements are the only possible
types of stuff on Earth. The majority of the elements are metallic. The figure below
indicates the room tempe
Chapter 10
Logarithms
A logarithm is a mathematical function that is the inverse of exponentiation. This set of problems will help you
understand the concept of logarithms, so that you may better understand the pH scale of acidity, which is a
logarithmic