Curated OER
The Mathematics of Chemical Formulas
Wow! This is one of the most exhaustive presentations on finding chemical formulas that you will come across! Beginning with the basics, and leaving junior chemists with procedures and concrete examples, this PowerPoint certainly...
Curated OER
Empirical Formula: From Percentage to Formula
Starting with definitions of empirical and molecular formulas, this slide show guides pupils through the ways to calculate and produce chemical formulas as percentages and molar ratios. A number of examples are given for viewers to try...
Curated OER
Relative Mass Formula, Atomic Formula, and Empirical Formula
After giving the definitions of the different compound terms and formulas, equations are provided to teach your chemists to calculate different values. Relative formula mass, atomic mass, and empirical mass are shown and explained with...
Curated OER
Empirical Formulas
In this empirical formulas activity, high schoolers read about determining empirical formulas from chemical formulas. They determine the empirical formula given ten molecular formulas. They also find the molecular formulas given the mass...
Curated OER
WS 4.5 Percent Composition and Empirical Formula
In this compounds worksheet, students determine the empirical formulas and percent compositions of compounds given chemical formulas, mass of elements in compounds and percentages of elements in compounds.
Curated OER
Empirical and Molecular Formulas
In this compounds worksheet, high schoolers write the empirical formulas or the molecular formula for the given chemical compounds. This worksheet has 20 problems to solve.
Curated OER
Chapter 2 and 3 Practice Worksheet - Formulas and Compounds
In this formulas and equations worksheet, chemistry apprentices write the chemical formulas given the names. They calculate percent composition, balance equations, and calculate the mass of a substance present in a fertilizer. This is a...
National Institute of Open Schooling
Chemical Arithmetics
Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...
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...
Curated OER
Chemistry Practice
In this chemistry overview worksheet, students calculated the volume of different gases and liquids given in a word problem. Students had to calculate the molecular mass and write the empirical formula and the molecular formula.
Virginia Department of Education
Matter and Energy: Equations and Formulas
Using simple materials, an informative lesson plan demonstrates the Law of Conservation of Matter and explains how to balance chemical equations. Young chemists perform experiments, analyze reactions, and balance chemical equations on...
Curated OER
Percentage Composition
In this chemical compounds worksheet, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.
Science Geek
Percent Composition, Empirical and Molecular Formulas
Help your pupils understand when empirical becomes molecular. The lesson presentation demonstrates the connection between empirical formulas and molecular formulas. Then, given percent composition, the lesson demonstrates the steps to...
Curated OER
Oxidation Numbers and Ionic Compounds
In this oxidation numbers and ionic compounds activity, students write the formula for compounds given ions, they write the ions given formulas, they list oxidation numbers for elements, they write formulas for compounds and they name...
Curated OER
Nomenclature Worksheet
As the title suggest, this is an exercise in chemical nomenclature. By completing it, young chemists will practice writing formulas for compounds named, and they will practice naming compounds that are listed by empirical formulas. These...
Curated OER
Chemical Equations
In this chemical equations worksheet, students determine the empirical formulas for chemical compounds and balance chemical equations. This worksheet has 1 fill in the blank question and 4 problems to solve.
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
2001 U.S. National Chemistry Olympiad - Local Section Exam
Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...
Curated OER
Nomenclature Worksheet - Acids
View empirical formulas for eighteen different acids and write their chemical names, then read the names of twenty acids and write their chemical formulas. All that you see on the worksheet is a tidy list of each, but no instructions....
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....
Curated OER
Chemistry 151 - Final Review
In this chemistry review activity, students give atomic symbols for given atoms, calculate moles, determine empirical formulas, and balance chemical equations. This activity has 1 drawing, 9 fill in the blank, and 12 word problems.
Curated OER
Formula Mass
In this formula mass activity, students read about molecular substances and their formula masses. They find the formula masses for six compounds using the atomic masses of its elements.
Curated OER
Chemical Formulas
Students assess how to go from writing ionic chemical formulas to nomenclature and naming chemical compounds. They brainstorm former studies and share their thoughts in small groups. A list of everyday products (shampoos, toothpaste,...
Curated OER
Chemical Analysis and Stoichiometry
In this chemical analysis worksheet, students use a combustion analysis report to calculate the empirical formula for compound samples. This worksheet has 2 problems to solve.