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pH. Measures hydrogen ion (H + ) and hydroxide ion (OH ¯ ) concentration. pH 1 = H+ [ ] 1/10 pH 4 = H+ [ ] 1/10000. pH 8 = H+ [ ] 1/100000000 pH 12 = H+ [ ] 1/1000000000000. pH scale. Range 0 - 14. pH 0-6.99 = acids. pH 7.01 – 14 = bases. pH 7.0 = neutral H + = OH ¯ (water).
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pH Measures hydrogen ion (H+) and hydroxide ion (OH¯) concentration pH 1 = H+ [ ] 1/10 pH 4 = H+ [ ] 1/10000 pH 8 = H+ [ ] 1/100000000 pH 12 = H+ [ ] 1/1000000000000 pH scale Range 0 - 14 pH 0-6.99 = acids pH 7.01 – 14 = bases pH 7.0 = neutral H+ = OH¯ (water) H2O H+ + OH¯ Acids increase in strength from pH 6.99 pH 0 Bases increase in strength from pH 7.01 pH 14
pH and buffers pH of human blood – 7.4 ±0.05 OR YOU DIE Hydrogen ions (H+) and hydroxide ions (OH¯) will react with Molecules and influence their configurations Acid precipitation is bad for life Buffers help attract H+ and OH- to maintain pH Response to drop in pH H2CO3 HCO3¯ + H+ Response to rise in pH H+ donor (acid) H+ acceptor (base) Hydrogen ion