DETERMINATION OF ELECTRODE POTENTIALS N.M. PICART1 and A.J. EDUARDO2 1INSTITUTE OF BIOLOGY‚ COLLEGE OF SCIENCE 2INSTITUTE OF BIOLOGY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: 22 APRIL 2015 DATE PERFORMED: 15 APRIL 2015 ANSWERS TO QUESTIONS 1. Discuss the differences between galvanic and electrolytic cells. A galvanic cell uses a spontaneous reaction to generate electrical energy. In the cell reaction‚ some of the difference in
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least two lab tests with serum potassium >5.0 mEq/L within a year o The earliest serum potassium test indicating hyperkalemia will be defined as the index event and the associated date of service will be defined as the index date. • Had at least 12 months continuous enrollment • Were 18 years or older as of the index date Exclusion: • Received medications (i.e.‚ diuretics‚ sodium polystyrene sulfonate or patiromer) to treat or reduce the symptoms of high amount of potassium in the blood • Hospitalized
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not printed in color‚ it is suggested you color code the ion channels and ions as you go through this topic. Ions channels and ions should be color coded as follows: Red: Sodium ion channels and sodium ions Blue: Potassium ion channels and potassium ions Page 1. Introduction • Neurons communicate over long distances by generating and sending an electrical signal called a nerve impulse‚ or action potential. Page 2. Goals • To understand that rapid changes
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Chemicals: Potassium Permanganate‚ Methylene Blue and Potassium Dichromate. Method: Obtain a pinch of potassium permanganate‚ methylene blue and potassium dichromate. Place each substance carefully on the surface of agar‚ carefully noting which is which so that the crystals are spread equally over the agar and not too close to the edge of the dish. Measure the diameter of the colored area immediately after adding the substance to the agar with regular 10-minute intervals. ---- Potassium Dichromate
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sodium channels are inactive at this point‚ meaning that the current‚ conductance‚ and driving force of sodium is equal to zero. Potassium’s conductance‚ however‚ is greater than zero‚ and potassium has a high driving force and current during the falling phase. This is due to the opening of voltage-gated potassium channels‚ which are delayed rectifiers. During the repolarization of the membrane‚ the cell enters a relative refractory period. This begins two to three milliseconds after the action potential
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mechanisms of crystal growth is called crystallization or solidification. Potassium alum (Aluminum Potassium Sulfate) is the white crystalline natural mineral salt (double sulfate) of potassium which typically occurs as encrustations on rocks in areas of weathering and oxidation of sulfide minerals and potassium-bearing minerals. The crystal alum mineral is commercially extracted in select quarries throughout the world. Potassium alum is specific chemical compound that is also part of a class of alum
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agar-water gel containing three wells. Drops of potassium permanganate (KMnO4)‚ potassium dichromate (K2Cr2O7) and methylene blue(C16H18N3SCl) were simultaneously introduced to each well. Methylene blue‚ having the largest molecular weight‚ displayed the smallest diameter (11 mm) and diffused at the slowest rate (0.20 mm/min.). Next is potassium dichromate with a diameter of 24 mm and rate of diffusion of 0.30 mm/min.. The fastest is the potassium permanganate with 19 mm diameter and diffusion rate
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granular fertilizer is in a slow-release formula. A numbering system is used to define the percentages of the three essential plant nutrients. For example‚ a 20-20-10 fertilizer would contain 20 percent nitrogen‚ 20 percent phosphorus and 10 percent potassium. Secondary nutrients and trace elements are typically listed.Henan Daswell Machinery Co.‚ Ltd‚is a professional manufacturer and trader specializing in the research‚ development and production of construction machinery for nearly 30 years. Our main
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What is the most significant abnormality shown in the serum chemistry? -The most significant abnormality is a rise in the Potassium levels. The reason this is the most significant is because of the narrow physiologic range. What abnormality is shown in the EKG? -There are “peaked” or “tented” T waves. The T wave represents the repolarization of the ventricles which is normally demonstrates soft gradual rise following the QRS complex‚ however in this case the t wave is not properly formed.
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University. "Development of an Equation." General Chemistry 1210 Laboratory Manual. Vol. 2013-2014. Plymouth: Hayden-McNeil. 32-35. Data/Results: Part A: In the potassium iodide solution‚ I think there were potassium atoms as well as iodine atoms. In the lead nitrate solution‚ I think there were lead and nitrate ions. The potassium atoms and the lead atoms can be classified as cations‚ since they are metals. The iodine atoms and the nitrate ion can be classified as anions since they are nonmetals
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