acids
hydrogen containing substances that when in solution dissociate into H+ and an anion
anion
neg charged ion
what does it mean if more H+ dissociates
it’s a strong acid
strong acid
completely dissociates into free H+ and anion in solution
weak acid
only partially dissociates into free H+ and anion in solution
bases
substances that will bind free H+ and remove it from solution
- stronger the base, the easier the H+ can bind
what is the term pH developed to be able to do?
express the amount of H+ in a solution conveniently
what happens with small changes in [H+]?
they have big effects
pH formula and 2 important notes regarding it.
Log10 (1/[H+]) = pH
1) the higher the [H+] the lower the pH (therefore more acidic)
2) each pH unit represents a 10 fold change in [H+] since it is a logarithmic scale
pH of water
7.0
acidosis and alkalosis affects on the body
- acidosis causes suppression of CNS
- alkalosis causes over excitation of CNS and PNS
what can pH changes cause?
either speed up or slow down enzympatic reaction
what can changes in [H+] change in the body?
can change the amount of K+ in body fluids
K+ levels if someone has acidosis
more H+ than K+ would be secreted therefore more plasma K+
3 primary sources of H+
1) carbonic acid formation
2) inorganic acids produced from breakdown of nutrients
3) organic acids from intermediary metabolism
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Module 4: Section 136
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Module 4: Section 228
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Module 4: Section 330
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Module 4: Section 454
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Module 4: Section 516
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Module 4: Section 637
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Module 5: Section 115
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Module 5: Section 223
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Module 5: Section 321
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Module 5: Section 427
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Module 6: Section 146
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Module 6: Section 229
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Module 6: Section 351
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Module 6: Section 450
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Module 6: Section 534
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Module 6: Section 629
