Counting Atoms in a Chemical Reaction
The Purpose of this lab is to determine the number of moles and the number of atoms
that zinc reacted.
Test tube + rack
Preparation of a Soap
The objectives of this lab are to prepare soap by saponification and to compare the
results of the experiment with butter and commercial soap.
Refer to page 276-280 of lab handout
Classifying Types Of Solutes and Solvents
The main purpose of the lab is to test the solubility of different solutes in
varieties of solvents. This lab allows us to use the knowledge and the
information given in the handout to determine the t
Classifying Types Of Chemical Reactions
To carry out seven different chemical reactions, use observations to help
determine what the products are and to write a balanced equation for each
Follow the instructions in the experiments and le
Classifying Types of Solutes and Solvents
In this experiment, we learnt how to identify the differences between ionic
and covalent compounds. Melting point is known as one of the most efficient
ways to identify the difference, because ionic c
System the part of the universe being studied in a given situation
Phase any part of a system which is uniform in bother its composition and properties
Phases in a system are distinct REGIONS separated from each other by VISIBLE
COUNDARIES (although somet
Standard State: Solid at 25C (77F)
Melting point: 1064.18C
Boiling point: 2856C
Density: 19300 kgm3
Chem 11: Practice Multiple Choice questions
1. The method of the physical separation of desired solids from a mechanical
mixture that requires separation based on density is called _.
b. Solvent extraction
c. Gravity separatio
Determining the Empirical Formula of a Compound
Purpose: To form the elements iron and oxygen and determine the empirical formula of
the compound produced in this chemical reaction
Ring stand + support
Crucible + cru
Heating and Cooling Curves of a Pure Substance
Purpose: To investigate the heating and cooling process of water
Test tube clamp
Beaker (400 mL)
To titrate a hydrochloric acid solution of unknown HCl concentration with
standardized 0.5 M sodium hydroxide and to use the results to calculate
the molarity of the solution.
Pure substances (elements and compounds): In a given state (solid, liquid or gas), pure
substances will have unchanging, uniform properties.
Ex. Salt (sodium chloride NaCl) has a density of 2.16g/mL, melts at 801 , and is colourless
Homogeneous mixture: h
Multiple Choice or Short Answer: Solution Chemistry
Which of the following would you expect to conduct electricity?
A) LiCl (aq)
B) KBr (s)
D) None of the above
What is the concentration of Cl- fromed when 10.0 g of BaCl2(s) is dissolved an
Multiple Choices or Short Answers: Atomic Theory
How many orbital is needed to fill a Nitrogen ion?
What is the first element in the alkali metals on the periodic table?
Which element below
3 May 2010
Experiment 15 C
Preparation of a Soap
To prepare soup by saponification.
To compare the results of tests on the soup prepared ion the experiment and a
soup prepared commercially.
Multiple Choice or Short Answer Questions: Nature of Matter
Which of the following statements is correct?
A. Air and water are elements.
B. Methane and carbon dioxide are compounds.
C. Water and silver are elements.
D. Water and silver are mixtures.
Multiple Choice or Short Answer Questions: Mole Concept
Jonathan analyzed a compound and found it to be 52.7% Potassium and 47.3%
Chlorine. She determines the empirical formula to be
What is the mass of 2.00 moles of
Hydrocarbon is a compound containing only hydrogen and carbon
Alkane is a hydrocarbon in which all the carbon atoms are connected by single bonds
Alkene is an organic compound containing a carbon-carbon double bond
Alkyne is a
Multiple Choices or Short Answers: Chemical Reactions
Balance the Following Chemical Reaction Equations:
1. CaC2 + O2 -> Ca + CO2
CaSi2 + SbCl3 -> Si + Sb + CaCl2
NO2 + H2O -> HNO3 + NO
Complete and Balance the following reactions and classify each
Lab 4B Energy stored in food
Volume of water
Mass of water
Final temperature of water
Starting temperature of water
Change in temperature of water
Mass of peanut before burning
Mass of peanut remaining
Mass of peanut that burned
Comparison between unknown chemical solutions
Purpose: Use our own knowledge and idea to form a procedure and compare different
unknown chemical solutions to identify is it distinct from each other or not.
Solution A ~ Solution E
The Density and Volume of a Water-Alcohol Mixture
The purpose of this experiment is to figure out the connection between the slope
of a graph that shows the mass of the substance versus its volume density of a
substance. Density is the mass
The following are general characteristics of HYPOTHESE
Normally single assumptions, and are narrow in their scope of explanation
When originally proposed, hypotheses are testable.
The following are general characteristics of THEORIES
Composed of one or mo
Vocabulary and Definition: Atomic Theory
Law of Multiple Proportions When different masses of one element combine
with a specific mass of second element, the mass ratios of the first element
compare to the second element are whole number ratio.
Law of Con