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Acids, Bases, and Solutions
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Presentation transcript:

Highlight as we go over them Notes to Summarize 8.4 Highlight as we go over them

The pH scale pH scale goes from 0-14 Acids have LOW pH (more H3O+ in solution) Bases have HIGH pH (more OH- in solution) pH of 7 means the solution is NEUTRAL

The pH Scale

Strong Acids and Bases Strong acids almost completely ionize when you add them to a solution Strong bases dissociate almost completely when you add them to a solution There are very few strong acids and bases

Weak Acids and Bases Weak acids and bases only ionize or dissociate a little Most things are a weak acid or base

Buffers Buffers resist changes in pH They are able to react with BOTH acids and bases Buffers are very important to the human body

Electrolytes Electrolyte – a substance that ionizes or dissociates into ions when dissolved in water All acids, bases, and salts are electrolytes Sports drinks contain electrolytes

Interesting to know... Sweat contains the following electrolytes: Sodium Potassium Calcium Magnesium Chloride Bicarbonate Phosphate Sulphate If you lose too many, your body can’t function

Which is better a sports drink or water? What do you think? It actually depends on the type of exercise you are doing... For most people, water is better For extended periods of intense exercise, sports drinks are better

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