MIDTERM III STUDY GUIDE
Scientific Notation:
1. Express the following numbers in exponential or scientific notation (keep the correct
number of significant figures).
a. 0.054
5.410-2
b. 5462
5.462103
c. 0.0000792
7.9210-5
Significant Figures:
2. Carry out
Chemistry 233
Name_KEY_
Problem Set 4
Chapter 18
1. For the following set of compounds, circle those that are aromatic, box those that are anti-aromatic, and
leave blank those that are non-aromatic. Assume that all adjacent sp or sp2-hybridized atoms are
Chemistry 233
Name_
Problem Set 4 Due 10/17/16
Chapter 18
1. For the following set of compounds, circle those that are aromatic, box those that are anti-aromatic, and
leave blank those that are non-aromatic. Assume that all adjacent sp or sp2-hybridized a
Review sheet for Biology 210A Lab Exam 1
The first part of the lab exam will cover general information about the scientific method. The second part
will cover material from the fermentation and photosynthesis experiments.
I. Scientific Method
1) Understan
Pre-Test 3 Sequence and Series Testing Math 151
Name _ Date _
Sequences
1. a. Find the limit of the sequence:
an n 3 2 n
b. write out the first 4 terms of the sequence starting at n = 1 _
1
n
n
2A. Find lim
n (e 1)
2B.
1 ( n 2) 2
lim n
1 3n 2
Telescoping
Pretest M151 Parametrics and Polar Equations
NAME _
Date _
1. Sketch the curve:
x = t2 + 1 y = 4 - t
-2 t 2
Indicate orientation with an arrow.
2. Find the equation in x and y for the following parametric equation:
x t 3
y
t
t1
3. Eliminate to find an equ
Chemistry 233
Name_
Problem Set #3 Due 10/3/16
Chapter 17
1. Give a complete mechanism and predict the major product for the addition reaction below.
Is this reaction kinetically or thermodynamically controlled?
2. Predict the products, show the mechanism
Chemistry 233
Name_
HW# 5 Due 10/24/16
Chapter 19
1. Give the products for the reaction below and a complete mechanism.
2. Predict the major product for each reaction below.
3. Give necessary reagents for the synthesis below. Show all isolated intermediat
Quiz #8 (Friday, November 7th)
1. If you have 2.00 mol of N2 reacting with sufficient H2, how many moles of NH3 will be
produced? N2 + 3H2 2NH3
2.00 mol N2 (2 mol NH3 / 1 mol N2) = 4.00 mol NH3
2. Calculate the mass of PbI2 produced by reacting 30.0 grams
Quiz #7 (Friday, October 24th)
1. How many centimeters (cm) are in 0.13 kilometers (km)?
" 110 3 m %" 1cm %
4
0.13km $
' = 1.310 cm
'$
2
# 1km &# 110 m &
2. How many atoms of H are there in 124 g of NH3?
Molar mass of NH3: 14.001 g/mol + 3(1.0079 g/mol
FINAL EXAM REVIEW - SOLUTIONS
Chapter 1: Elements and Compounds
1. Fill in the following table
Atomic
Symbol
B
Na
Y
Cu
Pb
Atomic
Number
5
11
39
29
82
Number of
Protons
5
11
39
29
82
Number of
Neutrons
6
13
50
35
125
Number of
Electrons
5
11
39
29
82
Atomi
MIDTERM IV STUDY GUIDE
Conversions:
1. How many moles of arsenic are produced when 150,000 moles of As2O3 are used?
300,000 moles of As
As2O3(s) + 3C(s) 2As(s) + 3CO(g)
2. How many grams of water are produced in the oxidation of 1.00 g of glucose, C6H12O6
Limiting Reactant and Percent Yield Practice
Name_
1)
Consider the following reaction:
NH4NO3 + Na3PO4 (NH4)3PO4 + NaNO3
Which reactant is limiting, assuming we started with 30.0 grams of ammonium
nitrate and 50.0 grams of sodium phosphate. What is the ma
Quiz #6 (Friday, October 17th)
1. How many molecules are in a mole?
There are 6.022x1023 molecules in a mole.
2. Calculate 1.23 / 4.198 (Your answer should have the right sig figs!)
1.23/4.198 = 0.293 (Our answer should have 3 sf since 1.23 has 3 sf, 4.19
Quiz #5 (Friday, October 10th)
1. Write the following numbers in scientific notation: (4 points)
a. 0.0192
1.92x10-2
b. 134.7
1.347x102
2. How many significant figures are in the following measurements? (4 points)
a. 0.00984
3 sig figs
b. 102.3
4 sig figs
Quiz #2 (Friday, September 12th)
1. (4 points) Write the chemical formula for the following ionic compounds:
a. Sodium bromide
NaBr
b. Iron (III) phosphate FePO4
2. (4 points) Name the following ionic compounds:
a. CaBr2
calcium bromide
b. Pb(SO4)2
lead (
Quiz #1 (Friday, August 29th)
1. (5 points) Classify each of the following as a pure substance or a mixture; if it is a
mixture, indicate whether it is homogenous or heterogeneous:
a. Sand heterogeneous mixture
b. Magnesium pure compound
c. Milk homogenou
Quiz #3 (Friday, September 19th)
1. (6 points) Assign the oxidation numbers to each of the atoms in the following
compounds:
a. Na2CrO4
Na: +1
Cr: +6
O: -2
b. H2SO4
H: +1
S: +6
O: -2
2. (4 points) Balance the following equation:
1C2H2 + 5/2O2 2CO2 + 1H2O
Quiz #3 (Friday, September 26th)
1. For the following oxidation-reduction reaction: _H2 + _O2 _H2O
a. Balance the equation. 2H2 + O2 2H2O
b. Label the oxidation state of each atom for both reactants and products.
Hydrogen goes from 0 to +1
Oxygen goes fro
Quiz #9 (Friday, November 14th)
1. Consider the following balanced equation:
2 C2H6 + 7 O2 4 CO2 + 6 H2O
a. How many grams of CO2 can be produced from a reaction mixture composed of
22.0 grams of C2H6 and 16.0 grams of O2?
22.0 g C2H6 (1 mol C2H6 / 30.069
MIDTERM III STUDY GUIDE
Scientific Notation:
1. Express the following numbers in exponential or scientific notation (keep the correct
number of significant figures).
a. 0.054
b. 5462
c. 0.0000792
Significant Figures:
2. Carry out the following operations.