Solution acidity {acidity}| is negative logarithm of hydrogen-ion concentration: pH = -log(H+). pH can range from 0 to 14. Pure water has dissociation constant K = 10^-7, so pK is 7, and pH is 7. Pure water is neither acid nor base. 1 M hydrochloric acid has pH 0. Lemon juice has pH 2. Soda water has pH 4. Coffee has pH 5. Urine and rain have pH 6. Water has pH 7. Bicarbonate of soda has pH 8. Milk of magnesia has pH 10. Cleaning ammonia has pH 11. 1 M sodium hydroxide has pH 14.
Physical Sciences>Chemistry>Inorganic>Acid-Base
5-Chemistry-Inorganic-Acid-Base
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Date Modified: 2022.0224