Curated OER
WS 5.5 Percent Composition
In this percent composition worksheet, learners find the percentages of atoms in compounds and they determine empirical formulas given the percent of each atom in a compound.
Curated OER
Lab-Percent of Composition of KClO3
High schoolers find the percent composition of oxygen in potassium chlorate. In this percent composition lesson plan, students heat a sample of potassium chlorate to decompose it into potassium chloride and oxygen. They weight their...
Virginia Department of Education
Formulas and Percent Compositions of Ionic Compounds
Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...
Virginia Department of Education
Finding the Formula and Percent Composition
Do you have mole problems? If so, call Avogadro at 602-2140. The lesson starts with pupils working independently to solve for molar mass of ionic compounds. Then they learn to solve for percent composition and later perform an...
Curated OER
Lab: Percent of Composition of KClO3
Students find the percent of oxygen in potassium chlorate. In this percent composition lesson plan, students heat a solution of potassium chlorate using a catalyst, manganese dioxide, to decompose the potassium chlorate and release...
Curated OER
Percentage Composition
In this chemistry worksheet, students find the formula weight for each of the substances listed on the sheet. Then they find the percentage composition as indicated.
Beyond Benign
Green"er" Precipitation Reaction
All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...
Curated OER
Penny Lab
In this percent composition worksheet, students carry out an experiment to determine the percent of zinc in a penny. They write a balanced equation for the chemical reaction they performed with the penny and hydrochloric acid.
Curated OER
Hand Lotion Analysis
Students prepare a sample of a commercial hand lotion for analysis by HPLC to determine the percent composition of two common cosmetic preservatives, methylparaben and propylparaben. They perform the analysis and the data is evaluated to...
Santa Monica College
The Composition of Potassium Chlorate
The third lesson in a series of 11 begins by using thermal decomposition of potassium chlorate to determine the mass percent of oxygen. Then a second activity allows scholars to demonstrate that the resulting residue is from a...
Virginia Department of Education
Solution Concentrations
What happens when you combine 6.022 times 10 to the 23 piles of dirt into one? You make a mountain out of a mole hill. Scholars use dehydration to obtain percent composition and then calculate the molarity of the original solution.Â
Curated OER
CheMATHstry That Sticks Right to You
Students find the percent composition of sugar in the gum. In this chemistry instructional activity, students calculate percent error from the experiment. They use dimensional analysis to convert between units.
Curated OER
Composition of Ocean Water
Students experiment to determine the composition of ocean water. In this ocean water composition lesson, students color in a grid that shows the percentage of each of the components of ocean water which include chloride, sodium, sulfate,...
Curated OER
Our Solar System - Comparing Planetary Travel Distances
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
Curated OER
Mining an Ore
Learners investigate how to determine the percent composition of a mineral in an ore. In this mining an ore lesson plan, students use chocolate chips cookies to represent an ore and they remove precious minerals (the chocolate chips)...
Curated OER
Gases In The Atmosphere
In this science worksheet, students look for the amounts of air composition in the atmosphere by filling in the three different data charts.
Curated OER
Water and Polymers
Students conduct qualitative and quantitative investigations based on the interaction between water and various polymers. They determine the percent moisture contained in various plastics along with a qualitative procedure to determine...
Curated OER
Air in Soil Administration Procedures
Students study soil and its composition. In this soil composition lesson, students study examples of soil during several days of aeration. Students summarize their data, organize it, and must be able to explain their findings.
Cornell University
Renewable Resins and Composites
Merge chemistry with environmental science to study biodegradable materials. An engaging activity allows learners to experiment with different resin concentrations and composites. Through experimental tests, scholars test their creations...
Curated OER
Egg Measurement
Students explore measurement and units. They measure eggs to determine their density, mass and percent composition. An inquiry approach is used for students to ascertain the mass.
Curated OER
Garbage Pizza
Young scholars examine amount of garbage disposed of by average household weekly, classify different categories of garbage and describe composition of landfills, investigate what happens to waste after it is collected by garbage trucks,...
Curated OER
Ammonium Nitrate - Efficient Fertilizers
Learners study the chemistry of ammonium nitrate and consider the advantages and disadvantages of this compound. They compare different fertilizers and calculate the molar mass and percent nitrogen in the different fertilizers.
Curated OER
A Statistical Look at Jewish History
Young scholars complete their examination over the Jewish Diaspora. Using population figures, they discover the importance of percentages in exploring trends. They use their own ethnic group and determine how it is represented in the...
Curated OER
Making Blood!
students research blood's components, and use their math skills to recreate a model of whole blood using commonly found food items.
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