Intermolecular forces – design lab Research question: To calculate the solubility of equal masses nitrates of four di-positive ions (Lead Nitrate‚ Barium Nitrate‚ Copper Nitrate & Ferrous Nitrate of 0.5 M concentration) in an equal volume of water and relate this to the ionic radius of the element and the molar mass of the nitrate chosen and hence comment on the intermolecular forces in each of these nitrates. + write mass Justification of the research question: I was particularly interested
Premium Solubility Mass Ion
reaction taking place and it gives them a better understanding of how chemical reactions work and what products they may form. Materials & Procedure Materials: * Wood Splints - Copper Sulfate * Sodium Sulfate - Copper Wire * Barium Chloride - 6% Hydrogen Peroxide * Mossy Zinc - Copper Sulfate Pentahydrate * Hydrochloric Acid - Iron Filings * Manganese Dioxide Procedure: Reaction A Place a scoop of copper (II) sulfate pentahydrate crystals in a clean‚
Premium
different flame color. Purpose The purpose of the lab is to determine the characteristic colors produced by certain metallic ions when vaporized in a flame and identify unknown metallic ions by means of their flame tests. Materials •Barium Chloride •Calcium Chloride •Cupric Chloride •Lithium Chloride •Potassium Chloride •Sodium Chloride •Strontium Chloride •Bunsen burner •Flint striker •Wooden splints •Goggles Procedure 1. Prepare
Premium Atom Metal Potassium
Sodium Sulfate that would confirm our compound and show its chemical properties. In each reaction‚ we replaced the presence of Sodium Sulfate with our unknown. Our first reaction was the reaction from the sulfate anion test between Sodium Sulfate and Barium Chloride. If the compound was in fact Sodium Sulfate it would produce a white precipitate and it did. The second reaction was first between Sodium Sulfate and Hydrochloric Acid‚ and then Silver Nitrate was added. For the compound to be confirmed‚
Premium Chemistry Chemical reaction Sodium chloride
Nursing Case Study I. Health HistoryThe subject of my case study is W. K. W.K. is a 95 year old white male who was admitted to Moses Cone Hospital on November 23‚ 2002. Prior to being admitted to the hospital‚ W. K. had been in excellent health. His troubles apparently began three weeks prior to being admitted. On November 23‚ W. K.’s son found him lying on the floor confused‚ and soaked in urine. Mr. K. was diagnosed as having an acute cerebral vascular accident. This disorder can also be described
Free Nursing care plan Nursing Oxygen saturation
muscular tube that carries food from the throat to the stomach. Approximately one in ten adults experience heartburn once a week. Heartburn is more common in pregnant women because of the pressure the expanding uterus exerts on the stomach. When you swallow‚ the lower esophageal sphincter‚ a circular band of muscle around the bottom part of your esophagus‚ relaxes to allow food and liquid to flow down into your stomach. When it relaxes at the wrong time‚ stomach acid flows back up into your esophagus
Premium Stomach
in an increase in the solubility of any free anions present in the sample. This will happen because the present anions will bind with the hydrogen cations present in the acid. B. The sodium sulfate is boiled because experiments have shown that barium sulfate is 50 times more soluble at 100°C than at room temperature. At the higher temperature‚ the Ba2+ and the SO42- are more likely to find each other and to form bonds and precipitate more slowly. If this happens too rapidly‚ then there is a high
Premium Solubility Chemistry Ion
Experiment No. 2: Dynamic Equilibrium and Le Chatelier’s Principle December 1‚ 2011 Final Formal Results Le Chatelier’s Principle states that “when a stress is applied to a chemical system at equilibrium‚ the equilibrium shifts in a direction that reduces the effect of stress” (Gross‚ Abenojar‚ and Tan 23). Moreover‚ it helps us “predict the direction of the shift of the equilibrium” (Silberberg 745). Silberberg also stated that there are three kinds of disturbances - concentration‚
Premium Management Balance sheet Generally Accepted Accounting Principles
Purpose: The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These methods
Premium Chemistry Water Solution
Hong Kong Diploma of Secondary Education Examination Chemistry School-based Assessment Sample Tasks Teachers may use the sample tasks for non-profit making educational and research purposes with proper acknowledgement. © 留 2010 Hong Kong Examinations and Assessment Authority All Rights Reserved 2010 Chemistry School-based Assessment Practical Related Tasks Volumetric analysis Teacher Notes NSS Chemistry Curriculum Link: Time Required: 40 minutes Topic IV Acids and Bases Students
Free Titration PH indicator PH