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Chemistry

Chemistry has a lot of definitions, constants, formulas and rules to know before you can solve an exercise. Lumi has you recall them regularly so they stay available.

How to turn this subject into cards

In chemistry, make one card set per idea (mole, concentration, pH, redox, equilibrium) with three parts, the definition, the formula with its units, and the method in steps for a typical exercise. Add a card set for the periodic table, constants and the formulas of common ions. The usual trap is balancing correctly in class and then forgetting the method alone, or mixing up an amount of substance and a concentration. Lumi quizzes you on definitions, units and steps, and lets you correct its deliberate mistakes. Testing yourself beats rereading (Roediger and Karpicke, 2006). It helps you remember definitions, formulas, units and method steps.

Example card

Try it, Lumi turns it into fill in the blank questions in your browser.

study-card.txt

Chemistry · teach this card to Lumi

Avogadro’s constant is about 6.02 times 10 to the 23 per mole. A solution with a pH of 7 is neutral at 25 degrees Celsius. Molarity equals moles of solute divided by liters of solution. Oxidation is the loss of electrons and reduction is the gain of electrons. The periodic table orders elements by atomic number.

Lumi’s question

_____ is about 6.02 times 10 to the 23 per mole.

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Read next

Active recall, why quizzing yourself beats rereadingReading once then quizzing three times gave 61% of ideas recalled after a week, against 40% for rereading four times (Roediger, 2006).Spaced repetition, how long to wait between two reviewsSpacing beats massing. The best gap between two sessions depends on how far away the exam is, with the benchmarks from Cepeda’s 2008 study.How to make flashcards that actually workA good card asks a question and makes you produce the answer from memory. What Rowland, Kornell, Slamecka and Rawson found.

Teach this to Lumi

Give Lumi your chemistry notes, it gives them back as questions at the right moment.

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