cm) compared to HCl (dave HCl= 16.18 cm). Another experiment was performed with the use of petri dish containing an agar-water gel with three wells. One drop of each substance (potassium dichromate‚ potassium permanganate‚ and methylene blue) was placed on each respective well. In three-minute interval for 30 minutes‚ potassium permanganate‚ which has the lowest molecular weight (MW= 158 g/mol)‚ displayed the largest diameter (d= 17.5 mm) and diffused with the fastest rate (0.52 mm/min). On the other
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flame when lit‚ making it easy to identify and relable against the other substances. * Potassium nitrate Also‚ potassium would give off a light purple color when lit‚ making it simple to identify against the other substances. * Ammonium chloride Ammonium‚ although not tested in this lab‚ would be easy to pick out since it most likely does not give off a pink or purple flame as lithium sulfate and potassium sulfate do‚ respectively. 3. Using the results of this lab‚ explain how one could
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Melissa Carrithers AP Chemistry period 6 2-11-15 Determination of Ka of Weak Acids Purpose: The purpose of this lab is to find the strength of weak acids by determining the equilibrium constants for their ionization reactions in water. Is to use their measured pH values to calculate the pKa for the two unknown weak acids thus determining their identities. Hypothesis: If we neutralize a solution that contains a weak acid by adding a strong base to the solution‚ then the ions will be isolated and
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some calcium and potassium to your diet. You can do this through supplements‚ but it is better to try and add some food items that accomplish this objective. Dark vegetables like spinach and kale are great to boost calcium‚ plus sesame seeds are high in calcium. Of course you can add a cup of milk per day‚ but some folks are lactose intolerant so that’s not always an option. A good old fashioned banana a day will not only boost your brain function‚ but add a fair amount of potassium to your diet. Sometimes
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Determination of Chloride in Urine in Different Circumstances Aim: To determine the chloride content by titrating mixtures of urine against potassium thiocyanate under in different circumstances. Research Question: How do different conditions of urine samples collected affect its concentration of chloride which is measured by titrating the mixture of urine with potassium thiocyanate until it turns red? Hypothesis: The greater the consumption of food‚ the higher the chloride concentration in urine
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sulfuric acid (H2SO4) to the potassium manganite solution. Potassium manganate (VII) solution is used as a standard solution for oxidation and during redox titration. Potassium manganate(VII) is a self-indicator so other indicators are not required. The manganite is reduced from +VII in MnO4- to +II in Mn2+. The sulfuric acid (H2SO4) reacts with the paper clip. By heating up the sulfuric acid the paper clip dissolves‚ and iron (II) ions are oxidized to iron (III) ions by potassium manganate (VII). When
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various aspects of kinetics of three reactions. A. Reaction between lead nitrate (PbNO3) and potassium chromate (K2CrO4) solutions B. Reaction between potassium permanganate (KMnO4) and oxalate ion (C2O42-) C. Iodine clock reaction A. REACTION BETWEEN LEAD NITRATE AND POTASSIUM CHROMATE SOLUTIONS Lead nitrate reacts with potassium chromate to form yellow lead chromate precipitate and aqueous potassium nitrate. The formation of a yellow precipitate indicates the completion of the reaction. The
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Channelopathy is a disease relating to dysfunctional ion channels. The most common ion channels involved include sodium‚ potassium‚ calcium and chloride. Ion channels are very important in the neuron. Every Ion channel has its own threshold that has to be reached for action potential to be detected. For example‚ if resting membrane potential of a neuron is -70 mV and sodium ions are added it would cause the voltage to drift toward -55mV because the equilibrium potential for sodium is +60 mV. However
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Chapter 6 Study Guide Fluids‚ Electrolytes‚ and Acid-Base balance Compartmental Distribution of Body Fluids 2/3 of the body’s water is contained in the ICF‚ the remaining 1/3 is in the ECF ICF fluid volume is regulated by proteins and other non-diffusible organic compounds in cells Interstitial fluids (IF) act as a transport vehicle for gasses‚ nutrients‚ wastes‚ and other materials 14%-16% of body weight Reservoir for maintenance of vascular volume; used during hemorrhage
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1. Identify the foods in his diet that may be contributing to his hypekalemia. a. Foods that his in potassium in his diet and may contributing to his hyper kalemia include; potatoes‚ spinach‚ fruits‚ salt substitutes‚ and the bacon‚ possibly the butter on the toast 2. Which ECG changes would be typical for a patient such as this? b. QT wave is elongated 3. Formulate relevant nursing diagnosis for this patient based on the data provided. c. Risk for ineffective
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