"Sodium" Essays and Research Papers

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Fluids and Electrolytes

ranges: * Sodium: Na+ 136- 145 mmol/L: sodium is the most abundant ECF ion (cation- positively charged ion)(90%) and is responsible for the osmotic balance of the ECF space by regulating osmotic forces and therefore regulating water balance (interstitial and intravascular fluid volume). Other function include: working with potassium and calcium to maintain neuromuscular irritability for conduction of nerve impulses, regulation of acid-base balance (through sodium bicarbonate and sodium phosphate)...

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action potential

K+ channels close and the Na+/K+ transporter restores the resting potential. Action potentials are formed when a stimulus causes the cell membrane to depolarize past the threshold of excitation, causing all sodium ion channels to open. When the potassium ion channels are opened and sodium ion channels are closed, the cell membrane becomes hyperpolarized as potassium ions leave the cell; the cell cannot fire during this refractory period. The action potential travels down the axon as the membrane...

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Sodium Bicarbonate and Boxing

KNES 470 Dr Rubin 4-18-12 Sodium Bicarbonate and Boxing Performance Boxing is a sport which relies on anaerobic power since it contains short-duration and high intensity work. A typical boxing match today consists of 3 minute rounds with a 1 minute seated recovery rest. When an athlete performs exercise at maximal level for more than 30 seconds, most of the energy comes from anaerobic glycolysis. During this process, lactic acid is produced which causes a decrease in pH levels within the muscle...

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Classifying Chem Reactions Lab

Wash bottle Pen for labeling Jars or plastic cups, small, 2 Sealable, zipper-lock plastic bags, quart size, 6 Measuring spoons, teaspoon and half-teaspoon, 1 each Water, distilled, or deionized Phenol red, 0.02% aqueous solution 30mL Sodium Bicarbonate (solid), 3 tsp. Calcium Chloride (solid), 6 tsp. Safety Precautions: Calcium chloride is slightly toxic by ingestion. Phenol red is a dye solution and will stain skin and clothing. Avoid contact of all chemicals with skin and eyes...

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Standardization of Sodium Hydroxide

12-STANDARDIZATION OF SODIUM HYDROXIDE Standard solutions for titrations are especially pure mixtures with exactly known concentrations. Primary standards are very pure solids. They have the advantage that they can be weighed (the analytical balance is normally the most accurate instrument in the laboratory) and they are stable under laboratory conditions. In this experiment, the primary standard is oxalic acid dihydrate, H2C2O4 ( 2H2O. It will be used to standardize a solution of sodium hydroxide...

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Transport Proteins on Strike

stomach virus which apparently caused the body to lose water. As the body lost water, water moved out of the cells in attempt to keep solute concentrations balanced across the cell membrane. Sports drinks contain water as well as “electrolytes” like sodium, potassium, and chloride. The recommendation for drinking sports drinks, which contain these “ionic solutes” (as well as water) to prevent or treat dehydration, is so these molecules will enter the cell and help replace what was lost and maintain...

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Chemistry Alkali Metals

They are very reactive metals and do not occur freely in nature. Alkali metals are malleable, ductile, and are good conductors of heat and electricity. Alkali metals can also explode if they are exposed to water. The Alkali metals are: lithium, sodium, potassium, rubidium, cesium, and francium. Lithium The mineral petalite, which contains lithium, was discovered by a Brazilian scientist named Jose Bonifacio towards the end of the 18th century. Then in 1817, lithium was discovered by Johan August...

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oxides

universal indicator solution and colour chart teat pipette pH paper splints sodium peroxide, Na2O2 magnesium oxide, MgO aluminium oxide, Al2O3 phosphorus(V) oxide, P4O10 silicon(lV) oxide, SiO2 access to sulphur dioxide cylinder or generator, SO2 Drechsel bottle glass tubing with right-angled bend rubber tubing for connections HAZARD WARNING Phosphorus(V) oxide is corrosive and irritates eyes, skin and lungs. Sodium peroxide is also corrosive and a powerful oxidant. Sulphur dioxide is a toxic...

Free Oxygen, Magnesium, Sulfur dioxide 728  Words | 4  Pages

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Anatomy cells and chemistry

movement of counterions such as sodium ions or protons. The counterions are moving from a lower to higher concentration. 4. What is symport? Why occurs there? A symport is a transmembrane protein outside of the cell. Sodium ions and the specific sugar or amino acids bind to the transmembrane protein. 5. How is a low concentration of sodium maintained inside the cell? How is it powered? Low concentration of sodium is maintained inside the cell by the sodium potassium pump and that is powered...

Free Oxygen, Molecular diffusion, Potassium 1212  Words | 6  Pages

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Factors Affecting Rate of a Reaction, Chemistry Design Lab

Reaction.’ The rate of the reaction will be measured by timing the reaction between Hydrogen Peroxide, Potassium iodide, and Sodium Thiosulphate. Sodium Thiosulphate is used as a delaying mechanism as the reaction between the two main reactants is too rapid to measure. The Sodium Thiosulphate will react with the Iodine [III] ions (the product) first and when the all the Sodium Thiosulphate has reacted, then the remaining Iodine ions will form a blue-black solution because of the addition of Starch...

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