ANSWERS TO POST-LA BORATORY QUESTIONS
1. If any acid remained in the graduated cylinder, it would have been neutralized in the cylinder when the base
was added. The heat evolved at this time would not be measured. Looking at it another way, the b
Molar Mass Determination by Freezing Point Depression in t-Butyl Alcohol | Lab 2
Determine the freezing point of t-butyl alcohol, the molal freezing point constant for tbutyl alcohol, and the molar mass of an unknown.
4 KINE 505
REPRESENTATIVE STUDENT DATA
Data Sheet 1
I. Preparing to Measure Solution Volumes
concentration of H2C204 solution. moi/L 0.755
concentration of KMnO. solution, moi/L 0.130
room temperature. °C 22
ll. Determining the Effect of Reactant Concentr
4 EQUL 616
REPRESENTATIVE STUDENT DATA
Data and Observations
l. Studying the Dissociation of HC2H302 in Water Equilibrium
color of original equilibrium mixture: red
color change after addition of NaCzHgoz: ‘ changed from red to yellow—orange
ANSWERS TO POST-LABORA TOR Y QUESTIONS
2. (1) Freezing point depression is s sotution phenomenon. The solute must dissolve in the solvent to create a
coltigative ettect. In this situation, the experiment is not valid.
(2) A chemical reaction occurred. as
ANSWERS TO POST"LAEQRATQRY QUESTIONS
1. The titraticm cuwes fmm Parts El and 3%? are simiiar aﬁer the equivalence paint because, in both cams, the onty 5w
Bastion mmmnem responsibia far astabﬁshing ma aviation pH is excess NaOH aotutéon. The acids haw: be
Use the spaces pravfded for the gamers and additianai paper if necessary.
"L Did the mitng cat water you used to disasotve your KHP affect the resutts at yam standardization?
Brieﬂy explam yam answer.
Studying the Rate of the Reaction of Potassium Permanganate and Oxalic Acid
Determine the order with respect to permanganate ion and to oxalic acid concentrations
for the reaction of potassium permanganate and oxalic acid so
Chapter 3: (3 points each)
1. There are two stable isotopes of chlorine: chlorine-35, with a mass of 34.968853 amu; and chlorine-37, with a mass of 36.965903. Given that the average atomic mass of a chlorine atom is 35.45 amu, which of the following state
Biochemistry Lab II
INTRODUCTION - Protein Expression / Induction
Many different biochemistry projects require recombinant protein. This protocol is a simple method for creating crude
Southern Blotting and
Related DNA Detection
. The Principle of the Southern Blot
. Preparation of DNA Prior to Southern Blotting
Terence A Brown, University of Manchester Institute of Science an
The ability to understand the biological process
mass. It must be purified to over 98% pure by
isolation procedures before one can study its
Southern Blotting Paper Content:
When writing your Southern Blot paper, use the rubric as a guide! The rubric, however, is just a
check list of big picture points that need to be included. Just making a cursory effort to check
those items off the list wil
Southern Blotting: Detection of the
Ultrabithorax (Ubx) gene of Drosophila
Development and Uses
The Southern blot method was developed by Edward Southern in 1975. This
classic procedure for the detection of specific sequences of DNA in the co
SOUTHERN BLOT LAB: BACKGROUND, OVERVIEW & PROTOCOL
In 1975, E. M. Southern developed a technique to transfer DNA directly from an agarose gel
to a nitrocellulose or nylon membrane. The technique relies on capillary action.
Review Sheet I Chem1308 (TTh 5:00-6:45 p.m. Dr. Jiang )
A. Content: Ch. 16, 17, 18. Focus on in-class discussions , Connect/ALEKS online a
ssignments, and related subjects in the textbook.
1. Ch. 16 Acid-Base Equilibria:
Note: Ka , Kb , or Kw cit
Review for the HCCS Final Exam for
Dr. Gholam Pahlavan
jbReconstruction, (the Second Civil War), 1865-1877
Andrew Johnson: Ran the country along side Lincoln
- Supported slavery
- He opposed secession
- Political rivals with Lincoln.
- Supported the radicals to a sense
- Quenched fears of southern
Bio 1406 Chapter 5
Cells join smaller organic molecules together to form larger molecules.
These larger molecules, macromolecules, may be composed of thousands of atoms and
weigh over 100,000 daltons.
The four major classes of macromolecules are: carboh
Bio 1406 Chapter 1
Biology is the scientific study of life
Emergent properties: results from the arrangement and interaction of parts within a system.
Emergent properties characterize nonbiological entities as well.
Reductionism is the reduction of comp
Bio 1406 Chapter 2
Organisms are composed of matter.
Matter is anything that takes up space and has mass.
An element is a substance that cannot be broken down to other substances by chemical
Omit this type of Element
There are 92 naturally
Bio 1406 Chapter 3
Water is the substance that makes life as we know it on Earth possible.
Why do astronomers hope to find evidence of water on newly discovered planets?
Life on Earth began in water and evolved there before spreading onto land.
Bio 1406 Chapter 6
All organisms are made of cells
The cell is the simplest collection of matter
that can be alive
Cell structure is correlated to cellular function
All cells are related by their descent from earlier cells
The basic structural and funct
Bio 1406 Chapter 4
Cells are 70-95% water, the rest consists mostly of carbon-based compounds.
Living organisms consist mostly of carbon-based compounds.
Proteins, DNA, carbohydrates, and other molecules are all composed of carbon atoms
bonded to each o
Bio 1406 Chapter 8
The living cell is a miniature chemical factory where thousands of reactions occur
The cell extracts energy and applies energy to perform work
Some organisms even convert energy to light, as in bioluminescence
The sum of chemical reac
Bio 1406 Chapter 9
Living cells require energy from outside sources
Some animals, such as the chimpanzee, obtain energy by eating plants, and some animals
feed on other organisms that eat plants
Humans depend on other plants and animals for their source o
Bio 1406 Chapter 7
The plasma membrane separates the living cell from its nonliving surroundings.
Like other membranes, the plasma membrane is selectively permeable, allowing some
substances to cross more easily than others.
The main macromolecules in m
Bio 1406 Chapter 10
Life on Earth is solar powered.
The chloroplasts of plants use a process called photosynthesis to capture light energy
from the sun.
Photosynthesis is the conversion of solar energy into the chemical energy stored
in sugars and other
1) Circulatory systems have the primary benefit of overcoming the shortcomings of
A) temperature differences between the lungs and the active tissue.
B) the slow rate at which diffusion occurs across cells.
C) communication systems