(a) Calculate the number of moles of O2 dissolved in a liter of blood if the sol
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Question
(a) Calculate the number of moles of O2 dissolved in a liter of blood if the solubility of O2 in blood is the same O2 in water for someone in New Rochelle, NY. (a) Compare the value above to the number of moles of O2 dissolved in a liter of blood for someone in Telluride, CO.
(b) Compare the number of moles of O2 dissolved in a liter of blood to the number of moles of CO2 dissolved in blood. (You can make this comparison for someone in New Rochelle, NY). Also, compare the Henry’s Law constants for O2 and CO2 in water.
Explanation / Answer
(a) 1. Energy from the sun is stored in glucose, the most important energy storage for plants and animals.
2. Glucose makes up about 1% of the blood of a human being.
3. Carbohydrates and proteins can be broken down to make glucose.
4. Glucose that is not used immediately by the body is stored in the small intestine.
5. Glycogen is a large straight-chain molecule made of many glucose molecules linked together.
6. Adenosine triphosphate (ATP) molecules contain only oxygen, phosphorouand hydrogen atoms.
7. ATP molecules react with water to make ADP molecules which react with water to make AMP molecules, then glucose provides energy to re-assemble the ATP molecules to continue the cycle that provides your body with energy.
8. Studies show that straight glucose improves memory than complex carbohydrates.
(b) In chemistry, Henry's law is a gas law that states that the amount of dissolved gas is proportional to its partial pressure in the gas phase. The proportionality factor is called the Henry's law constant. It was formulated by the English chemist WilliamHenry, who studied the topic in the early 19th century.
Henry's Law in Respiration. The main application of Henry's law in respiratoryphysiology is to predict how gasses will dissolve in the alveoli and bloodstream during gas exchange. The amount of oxygen that dissolves into the bloodstream is directly proportional to the partial pressure of oxygen in alveolar air.
Calculate the solubility product. The equilibrium is: For every mole of magnesium hydroxide that dissolves, you will get one mole of magnesium ions, but twice that number of hydroxide ions. Now put these numbers into the solubility product expression and do the sum.
Uses: Solubility curves allow a scientist to determine the amount of a solute that can dissolve in 100 grams of water at a given temperature. Slope: A steeper slope relfects more of an affect on solubility as temperature increases.
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