Molality Teacher Resources
Find Molality educational ideas and activities
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2000 U.S. National Chemistry Olympiad Part II
For this chemistry olympiad problem solving worksheet, chemistry pupils solve eight problems on a variety of topics including periodic trends, phase changes, ionization reactions, catalysts and titrations.
1999 U.S. National Chemistry Olympiad Part II
A variety of topics including reaction rates, combustion reactions, periodic trends, and ionization reactions are included in this exam. Test takers also practice calculating empirical and molecular formulas of compounds.
2001 U.S. National Chemistry Olympiad Part I
Sixty multiple-choice questions test on a variety of first year chemistry subjects. In order to succeed, exam takers must be competent with properties of elements, stoichiometry problems, gas laws, bond dissociation, and types of reactions. A page is provided that displays a comprehensive chart of abbreviations and symbols, constants, and the periodic table. Also, an answer key is provided for teachers. This is a top-notch exam!
2001 U.S. National Chemistry Olympiad National Exam Part II
Only eight problems are on this competitive national chemistry exam. It required the balancing of chemical equations, solving stoichiometry questions, and more. This is part two of three of the national exam. Also available is a local pre-competition exam. All of these resources are well-written and neatly formatted tests that you can use in your general chemistry curriculum or as preparation practice for the National Chemistry Olympiad.
Version 001 – Exam 1 – David Laude (53015) 1
A 30-question multiple choice chemistry test challenges takers. Topics touched upon include thermochemistry, equilibrium, behavior of gases, and pH. Problem solving is required in order to answer most of the questions. Other questions require critical thinking skills and reading phase diagrams. Content is solid, but there are unusual subheadings for each section that may make it undesirable for your use.
This sequence of increasingly difficult questions about concentration asks learners to calculate the mass or amount of a substance in a solution. The questions then tests understanding by asking for an evaluation of boiling points, vapor pressure, osmotic pressure, and freezing points of certain solutions. An excellent test of comprehension, as questions are phrased in different ways, and calculations are needed, but not presented as such.
Colligative properties of Solution
Students identify the boiling point elevation. In this investigative lesson students differentiate between different properties in a solution.
2004 U.S. National Chemistry Olympiad Exam Part II
In this National Chemistry Olympiad test, junior chemists answer eight problem solving questions on a variety of topics. These include calculating molarity of solutions, determining rates of reactions, calculating decay and discussing topics such as electrolysis.
Determination of An Acid Dissociation
In this chemistry worksheet, students examine the given concept in order to apply in the laboratory setting. The sheet includes in depth background information.
Chemistry Exam Fall
In this chemistry exam worksheet, students solve 11 problems including topics such as writing equations, solving for unknown values, calculating formulas, and finding the density and reaction rates of solutions.
Solubility and Solutions
For each of the eight solutions, there are are number of questions about their concentration, molarity, or solubility curve.
H2O2 Decomposition Lab II
Students conduct an oxidation experiment in which they must determine how much hydrogen peroxide (H2O2) is actually in a store-bought solution of H2O2.
Freezing and Boiling Point Changes
Students predict changes in freezing and boiling points of water, given type and quantity of solute added. They solve word problems for changes to boiling points and freezing points of solutions based upon data supplied. They describe and discuss the evolution of glass making through the ages.
Determination of the solubility product of silver(I) chloride
In this chemistry worksheet, learners examine the concept of solubility of silver chloride. The sheet has in depth concept and laboratory instructions.
In this stoichiometry worksheet, students review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This worksheet has 18 word problems.
2004 U.S. National Chemistry Olympiad Part I
In this chemistry worksheet, test takers answer 60 multiple choice questions on topics related to chemistry from balancing equations to calculating moles and molecules of compounds. They name formulas, they convert, they solve problems on topics such as redox reactions, gas laws and chemical structure.
2003 US National Olympiad Exam Local Section
In this National Olympiad Exam worksheet, students answer sixty multiple choice questions including topics such as atomic structure, problem solving, thermodynamics, acids and bases and solutions.
2005 U.S. National Chemistry Olympiad - Local Section Exam
National Chemistry Olympiad tests are released after their use each year, since they cannot use them again for this event. The result: outstanding comprehensive assessment resources for general chemistry classes! This 2005 version covers an abundant array of topics and skills and it requires both critical thinking and problem solving to complete. An answer key is provided for your convenience.
Chemistry Worksheet-Phase Change
In this phase change worksheet, students answer twenty questions about boiling points, specific heat and enthalpy, vapor pressure, osmotic pressure, miscibility and solubility.
Chemistry Worksheet-Phase Changes
In this phase change activity, students solve twenty problems related to energy changes in solutions. Students answer questions about phase diagrams, the effects of pressure changes on a system, miscibility, boiling points and vapor pressure.