What is the free Chemistry Basics: Amount of Substance Quiz?
This is an unofficial free web quiz for practicing chemistry basics, especially amount of substance, mol calculations, molar concentration, dilution, mass percent concentration, and chemical equation stoichiometry.
Questions, answer choices, explanations, and diagrams are originally created for this site. The app uses general chemistry facts such as formulas, units, constants, chemical formulas, and reaction ratios.
Original courses for mol, concentration, and reaction equations
The course lineup is designed independently for daily review of chemistry basics.
- 10-question basics mix
- 20-question mol and particles
- 20-question mass and molar mass
- 20-question gas volume and mol
- 20-question molar concentration
- 20-question mass percent concentration
- 20-question balancing chemical equations
- 30-question reaction stoichiometry
- 50-question experimental calculation practice
- 100-question chemistry basics comprehensive challenge
Dynamic hints with original diagrams
The hint area changes according to the current question. It can show self-made diagrams for mol conversion, solution concentration, dilution, gas volume, and reaction ratio calculations.
My Page stores challenge history, best records, and often missed questions, so you can review weak points repeatedly.
Long-tail practice topics
The app is designed for searches such as mol calculation practice, molar concentration problems, dilution calculation, mass percent concentration, coefficient ratio, mol ratio, limiting reactant, and chemistry basics test review.
Each question is short and original, so it can be used for quick review without reproducing textbook examples, entrance exam questions, mock exam questions, or publisher materials.
How to use this quiz for review
Start with mol and particles, then review mass and molar mass, gas volume, concentration, and finally chemical equation calculations. The dynamic hints show the formula, unit conversion, and calculation flow for the current question.
Unofficial site and rights notice
This site is not an official website of the Ministry of Education, Culture, Sports, Science and Technology, the National Center for University Entrance Examinations, any school, publisher, cram school, or preparatory school.
This site has not been authorized, certified, supervised, or endorsed by any organization or company.
The questions posted here are not reproductions of textbooks, reference books, workbooks, common tests, university entrance exams, or mock exams.
Questions, answer choices, explanations, and diagrams are originally created.
Please check each official website for formal curriculum guidelines, exam information, and teaching material information.
If there is any rights-related issue, please contact us. Contact form
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