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HCHS Chemistry
Chemistry Problem Solving Skills
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Problem-Solving Skills: Conversions
All measurements in science involve a number and a unit, but do you know how to go from one unit to another? Strengthen your conversion techniques here.

Problem-Solving Skills: Scientific Notation
Scientific notation is like mathematical shorthand. With just a few digits you can represent extremely large or small numbers. Click here to learn how.

Problem-Solving Skills: Significant Figures
A significant figure is a digit that represents an actual measurement. Scientists use significant figures to convey the accuracy of measurements. Click here to learn how to use them yourself.

Problem-Solving Skills: Mole Concept
What is a Mole and how does it relate to science? Find out here

Problem-Solving Skills: Percentage Composition
If you know the base elements in a mixture, do you know what compound they form? Not always. Sometime the same three or four elements can combine into many different compounds. Here's a tried and true method for determining what percentage of each element is in a compound to help you identify it correctly.

Problem-Solving Skills: Empirical Formulas
Are the differences in Empirical Formulas and Molecular Formulas giving you compound headaches? This study guide will help clear things up.

Problem-Solving Skills: Limiting Reactants
In every reaction there is a limiting reactant that determines how much of a compound will be produced or how long a chemical reaction will continue. Follow this link to learn how to identify which reactant is limiting in your experiments.

Problem-Solving Skills: Percent Yield
Despite your solid math, the chemical reactions in your labs often fall slightly short of producing the return you expected. Why? Go here to find out what a percent yield is and how it plays into the everyday behavior of real-world chemical reactions.

Problem-Solving Skills: Stoichiometry
Click here to learn everything you ever wanted to know and more about stoichiometry.

Problem-Solving Skills: Gas Laws
Learn how to express the relationships between temperature, volume, pressure and quantity of gases here.

Problem-Solving Skills: pH from Holt Reinhart, and Winston
Click here to learn about the pH scale and how it can affect the reactions of different chemicals.

 Problem-Solving Skills: Titrations from Holt Reinhart, and Winston

How do chemists learn the quantity of a substance by mixing known chemicals to unknown ones? Click here to find out.