Separation of a Mixture
* Purpose for the Lab: The labs goal is colleting each of the three components (Iodine,
Sand and Copper (II) sulfate) from a mixture into separate containers by using several
laboratory equipment and techniques. Additionally, it he
* Purpose for the Lab: In the first lab, it helped students to get acquainted with
laboratory equipment and how to use them safely. Moreover, students could learn some
chemical vocabulary terms and how to make a good observation.
a) After doing
March 12th, 2014
Arianne Mercer, Josh Kemp, and Chandler Wilson
The purpose of this lab was to understand how quickly a solution switches from acidic to
basic. The purpose was also to learn how to use a buret
Chemical Resources Lab
Gaseous at room temperature, the halogen chlorine is used for medicine, petroleum, dye,
plastics, paints, and for disinfecting. Like any other chemical, chlorine has good and bad
characteristics. One reason chlorine i
Ionic Solutions and Reactions
February 12th, 2014
Arianne Mercer and Sara MacCaul
We did this lab to observe the correlation between various dissolved compounds and
a. I learned that no
Graded HW #5
28. How much energy as heat is required to raise 77.0 g of water from 18.0C to 25.0C?
34. If the combustion of 48.8 g of methane (CH4) produces 855 kJ of heat, how much heat will
be produced in burning 1 mole of methane?
44. A different bomb
Date Performed: January 13, 2016 (Wednesday)
Purpose: The purpose for this lab is to help me learn how to observe physical changes
and how these changes provide evidence that a chemical change has taken place.
I learned new techniques and
Date Performed: March 9, 2016
Purpose: Using a balanced equation, a known concentration of base, and measured
volumes of reactants to calculate the unknown concentration of a sample of an acid.
In this experiment I learned how to properly
Date Performed: January 14, 2016
Purpose: To detect radioactivity with a Geiger counter, to experience the process of halflife using pennies, and to practice using the terminology of radioactivity.
In this lab, I learned about new equipme
Date Performed: February 17, 2016
Purpose: To learn about single and double replacement reactions and the reactivity of
In this lab, I learned about the relative reactivity of metals. The elements that are
very close to completing
Date Performed: February 10, 2016
Purpose: To determine what kind of mathematical relationship exists between the
pressure, volume, and temperature of a confined gas.
In this lab, I learned the names and uses of a lot of new equipment and
Practice for Exam I, Version A
CHEM& 139, Spring 2013
1. Give the type of measurement for each of the following:
a) The amount of space taken up by a substance is its _.
b) The amount of matter contained in a substance is its _.
2. Determine whether eac
Practice for Exam I, Version B
CHEM& 139, Spring 2013
* For all calculations: remember to use your units, and show your work for possible
partial credit. Significant figures count for the questions in which it says Sig. Figs.
1. Give the name and
Group Work #1 Review of 121 Material 25 pts Name_
Physical Properties and Changes
Chem&131 Winter, 2015 MJC
Due by Wed 1/14/15. Each person will turn in their own copy for points.
1. Explain the differences among the terms below and give a real example of