Common-ion effect

Lab Experiment # 11 The common ion effect in dissolution and precipitation Equilibria Introduction: Dissolution and precipitation reactions are very important chemical reactions because it is applied to many aspects of the industries in medicine, food, water etc. The objectives of this laboratory experiment is to become familiar with dissolution and precipitation equilibria, develop a lab technique suitable for the determination of the solubility for a sparingly soluble salt, Ba(NO3)2 (s) at room

Mateo Castro April 3, 2013 Lab Partner: Unur Abdul Kader T.A: Katie Experiment 22: Molar Solubility, Common-Ion Effect Abstract The purpose of this experiment was to determine the molar solubility, the solubility constant, and the effect of a common ion on the molar solubility of calcium hydroxide. To accomplish this the experiment was split into two parts; part A and Part B. in Part A of the experiment a standardized 0.05 M solution of HCl was titrated into a 25 mL solution of saturated

Experiment 5 COMMON ION EFFECT MALUBAY, Justin Damian PADRILLAN, Hazel Rose CD2, Group 5 Ms. Sarah Sibug 6 April 2013 ------------------------------------------------- ------------------------------------------------- I. ABSTRACT The common ion effect occurs when a given ion is added to an equilibrium mixture that already contains that ion, and the position of equilibrium shifts away from forming more of it. This paper is a follow-up of the experiment which aims to determine the common-ion effect on the

both the molar solubility and initial concentrations of OH- and Ca2+, Ksp is 0.001. 4. What are the effects of common ions and increasing ionic strength on the solubility of the Ca(OH)2 precipitate? Do they coincide with the theoretical effects? Explain. From the data gathered, presence of common ions decreased the solubility of Calcium Hydroxide (see: Table 2.2 vs Table 3.0 data). The effect of ionic strength on the solubility, on the other hand, has a general trend of increasing solubility as

Lab: 5 Experiment:13 Pre-Lab The purpose of this experiment is to observe an equilibrium reaction counteracting changes to it’s system all in accordance to Le Chatelier’s principle. An equilibrium reaction can be pushed toward products or reactant based on changes in temperature or concentration. The reversibility of reaction will also be looked at. Pre-Lab questions 1. The concentrations of products and concentrations of reactants remain constant but both reactions

~base ~acidosis ~pH ~alkalosis ~pH scale ~hypoventilation ~pH indicators ~hyperventilation b. To determine the acidic or base nature and actual pH of various substances. c. To discuss the formation of the carbonic acid/bicarbonate ion buffer system in maintaining homeostasis, especially with regard to ventilation. B. BACKGROUND: Homeostasis is the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to

Effect of Salt Contamination on Muds Common contaminants, sources, and treatments The most common contaminants to water-based mud systems are: • Solids (added, drilled, active, inert) • Gypsum/anhydrite (Ca2+) • Cement/lime (Ca2+) • Makeup water (Ca2+, Mg2+ ) • Soluble bicarbonates and carbonates (HCO3−, CO32-) Soluble sulfides (HS−, S2-) Salt/salt water flow (Na+, Cl−) Solids contamination Solids are materials that are added to make up a mud system (bentonite, barite) and materials that are drilled

The purpose of this lab is to observe the changes in a chemical reaction and how factors affect the system like increase concentrations, temperature, pressure or common ions affect the outcome of the overall reaction and its equilibrium. The Le Chatelier's Principle is used often in order to determine the direction of a reaction, like a balance when disturbed it shifts to more over to one side than the other; in this case if one side of the reaction is stressed the other side will react to counteract

a drug to have more bioavailability, which can cause toxic effects. Cirrhosis and obstruction jaundice appear to decrease hepatic metabolism and decrease drug excretion. Another organ function needs to be considered for drug metabolism is thyroid glands. The activity of metabolizing enzymes in decrease with hypothyroidism and increase with hyperthyroidism. Impaired liver functions significantly increase the risks if adverse drug effects. Acute liver impairment interferes with drug metabolism and

dissolving in an aqueous solution is represented by the solubility product constant, where the concentrations of different ions from the solid substance (compound) are used to calculate the solubility product constant. If the solubility product constant vale is high then the substance is very soluble in an aqueous solution. The solubility product constant is denoted by Ksp, and for a common reaction: aA(s) ⇌ cC(aq)+dD(aq)T The Ksp= [C(aq)]c[D(aq)]d The concentration of the solid (aA) doesn’t contribute to