Is pH 3 more acidic than pH 5?
pH 7 is the midway point. Learn which direction means acid strength, and why pH 3 and pH 5 differ by a hundred times.
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2 lessons for “Acids, bases and pH”
What is the second product of acid plus base?
Acid and base do not vanish. Their ions trade partners and become a salt and water. Fill in the two products.
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What power solves 2^x = 32?
A logarithm asks one question: what exponent do I need? log3(81) says: 3 to what power gives 81?
Try this lesson0.50 mol in 2.0 L: 0.25 M or 4 M?
Half a mole of salt in two liters of solution. Is the answer 0.25 M or 4 M? The definition settles it.
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