Curated OER
Unit 2 Quantities Review
In this quantities in chemistry worksheet, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and percent yields.
Curated OER
Percentages
In this percentages learning exercise, students read about how to express numbers as fractions, convert to decimal form and find the percent. They practice by solving four problems using the method they read about.
Science Geek
Calculations of Solution Concentration
Teach the process of calculating concentrations of a solute. The fourth in a series of seven chemistry lessons shows the various types of calculations including grams per liter, molarity, parts per million, and percent composition. The...
Curated OER
Percentage Composition
In this chemical compounds worksheet, high schoolers determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.
Curated OER
Solar Storms-Fractions and Percentages
In this solar storms worksheet, students find the percentage of X-Flares and Halo CMEs that occurred in solar storms and complete a Venn Diagram comparing the numbers of each.
Curated OER
Determining the Enthalpy Change of a Reaction
In this enthalpy of reactions worksheet, students use a known amount of copper (II) sulphate solution and an excess of zinc powder to calculate the enthalpy change of the reaction. Students measure the temperature change over the course...
Santa Monica College
Titration of Vinegar
Titration calculations require concentration. The 10th lesson in an 11-part series challenges young chemists to use titration in order to determine the molarity and mass percent in concentrated vinegar. Analysis questions encourage...
Curated OER
Summer Intern
Your young apprentices build a function describing the percent concentration of salt in a brine. The rational function is then related to the parent function, y= 1/x, and graphed. Finally, the apprentices predict the amount of fresh...
Curated OER
Thirsty Rocks: Please "Porous" a Drink!
A simple activity goes a long way in demonstrating the property of porosity to your rock hounds. They will mass a specimen of dry sandstone and then soak it in a pre-measured amount of water. After seven minutes, they once again measure...
Physics Classroom
Action-Reaction Lab
Computer-interfaced motion detectors are required to carry out this inquiry. It is a new twist on exploring motion with plunger carts: they are set back-to-back and then propelled away from each other. Their velocities are measured, and...
Curated OER
Measure Mania
Groups of young scholars rotate through five classroom stations to estimate, measure, and record volume, length, weight, mass, and area using both customary and metric measure. They evaluate their data to determine how close their...
Glynn County School System
Our Sun
The sun is responsible for almost 99 percent of the solar system's mass. As an essential part of our lives, the sun has many important features. A PowerPoint lesson presents information about features such as sunspots, the magnetic...
Curated OER
Condensation Polymerization: Preparation of Nylon 6/6
Students participate in a lab activity in which they synthesize nylon 6/6, calculate the percent yield by mass, identify the polymer as thermoplastic or thermoset, and determine the melting point, density and end-product use of the polymer.
Virginia Department of Education
Laboratory Safety and Skills
Avoiding lab safety rules will not give you super powers. The lesson opens with a demonstration of not following safety rules. Then, young chemists practice their lab safety while finding the mass of each item in a mixture and trying to...
Science Geek
The Hydrogen Bomb
Recycled Russian nuclear weapons provide 10 percent of the nuclear energy that the United States uses. The short presentation discusses the Teller-Ulam device. It provides a diagram of the parts as well as a description of the four...
Howard Hughes Medical Institute
Building Ecological Pyramids
Looking for a fresh take on traditional food/energy pyramids? Conduct an innovative activity where pupils build their own! The lesson uses research data from Gorongosa National Park in Mozambique for a real-life safari touch. Scholars...
Curated OER
CheMATHstry That Sticks Right to You
Young scholars find the percent composition of sugar in the gum. In this chemistry lesson, students calculate percent error from the experiment. They use dimensional analysis to convert between units.
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
Chemical Stoichiometry Problems
In this stoichiometry worksheet, students calculate theoretical yield and percent yield. This worksheet has 2 problems to solve.
Curated OER
How can we calculate the molecular weight of butane?
Students colloborate in a lab experiment. No OBJECTIVES.
Curated OER
How do Hypotonic, Hypertonic, and Isotonic Solutions Affect the Water Movement of a Cell?
After removing the shell from a raw egg, cell biologists soak the egg in either a hypotonic, hypertonic, or isotonic corn syrup solution. They calculate the percent change in mass and compare it to the strength of the solution in a...
Chemistry Collective
Virtual Lab: Gravimetric Determination of Arsenic
Arsenic in drinking water is a common problem in third world countries. Young chemists create a procedure to calculate the mass percent of arsenic in the soil. The virtual lab allows individuals to experiment with different methods.
Curated OER
Working Out Empirical Formulae
In this chemical compounds learning exercise, students learn the steps for determining the empirical formula of a compound and then complete 3 problems.
Curated OER
Chemical Equations and Stoichiometry
In this chemical equations worksheet, students calculate how many grams are used to in the equation written as well as the grams formed in the chemical equation. Students identify the limiting reagent in some of the chemical equations....
Other popular searches
- Mass Percent Composition
- Mass Percent
- Mass Percent of Solutions
- Percent Mass Percent Volume
- Molarity Percent Mass
- Molar Mass Mass Percent
- Molar Mass, Mass Percent