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water and life (water: the solvent of life (hydrophilic: substance is one…
water and life
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acids and bases :
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the pH scale
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aqueous solution at 25 degrees celcius, the product of H+ and OH- is constant and can be written as: [H+] [OH-] = 10^-14
the pH of a solution is defined by the negative logarithm of H+ concentration, written as: pH = -log [H+]
for neutral aqueous solution, [H+] is 10^-7, so pH = -(-7) = 7
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