...Lab Session 12, Experiment 11: Valence, the Combining Capacity of Elements and Molecules One molar mass of an element or compound that produces or reacts with 1.008 grams of hydrogen has a valence of I. It follows that the same quantity producing or reacting with 2.016 grams of hydrogen is valence II, and producing or reacting with 3.024 grams of hydrogen is valence III, etc. In this experiment, the magnesium metal will be reacted with concentrated hydrochloric acid to produce hydrogen gas according to the following chemical equation: Mg (sol) + x HCl (aq) → MgCl x (aq) + x H2 (gas) 2 The hydrogen gas produced will be collected, its volume measured, and the mass in grams calculated using the ideal gas law: PV = nRT When using this equation, the units of the gas constant (R) must be consistent with the units used for the other quantities in the equation. The Handbook of Chemistry and Physics lists the value of R as R = 0.08206 L × atm × mol –1 –1 ×K Thus, pressure (P) must be expressed in atmospheres, volume (V) in liters, and temperature (T) in Kelvin. 11A Experiment A sample of magnesium metal with an approximate mass of 0.24 grams will be reacted with excess hydrochloric acid. The hydrogen gas produced will be collected, its volume measured, and finally its mass in grams will be calculated. Chemicals Required: 6M hydrochloric acid Note: 12M HCl(aq) must be diluted. Apparatus Required: 500 mL Florence flask Glass tubing Watch...
Words: 1279 - Pages: 6
...MY NCLEX NOTES & CHARTS YouTube: @Heyrona "Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time." -Thomas A. Edison Cerebral Angiography BEFORE 1. Informed consent 2. Explain procedure 3. Lie the patient flat 4. Dye injected into femoral artery. Fluoroscopy & radiologic films taken after injection 5. Procedure Sedation 6. Skin prep; Chosen site shaved 7. Mark peripheral pulses 8. May experience feeling of warmth and metallic taste when dye injected AFTER 1. Neurological assessment every 15-30 minutes until vitals stable 2. Keep flat in bed 12 to 14 hours 3. Check puncture site every hour 4. Immobilize site for 6 to 8 hours 5. Assess distal pulses, color & temperature 6. Observe symptoms of complications (allergic response to dye, puncture site, hematoma) 7. Force fluids 8. Accurate I&O Lumbar Puncture BEFORE 1. Informed Consent 2. Explain procedure 3. Position patient in lateral recumbent\fetal position at edge of bed AFTER 1. Neuro checks every 15-30 minutes 2. Position flat for several hours 3. Encourage P.O. fluid to 3,000 mL 4. P.O. analgesics for headache 5. Observe insertion site for bleeding Urinary Frequency Teaching 1. Empty the bladder frequently (every 2 hours) 2. Drinking at least 2000 mL of fluid per day 3. Limiting fluid intake before bedtime (NOT avoiding fluid intake) 4. Perform kegel exercises to strengthen the perineal muscles 5. Wearing a perineal pad ...
Words: 1000 - Pages: 4
...Tylenol is prescribed 500mg every 6 hours PRN, patient need to be instruct not to exceed 3000mg per day. It is important to teach patient about the possible interaction between NSAID or acetaminophen and OTC cold medication. Hydrochlorothiazine 25mg twice a day, diuretics need to be monitor due to the interaction with NSAID plus the low sodium diet the patient is following at home. A medication reconciliation aids health care providers with the preventing of medication interaction, duplications, errors, writing orders as well as an opportunity for patient education like patient needs to be instruct of the interaction that all his prescribed medication have with alcohol plus diet and OTC. 2. The patient states that the last week has been painful since the surgeon did not want him to take the ibuprofen since October 25. What is the rationale for holding/discontinuing this medication at that time? (5 points) Ibuprofen can increase the risk of bleeding during surgery because it prevents platelets from aggregating and decrease clotting. It is recommended to stop NSAID a week prior to surgery due to the life spam of platelets. 3. The patient also reports that he took hydrochlorothiazide and Tylenol last night (October 31) and that the doctor’s office told him not to take his hydrochlorothiazide this morning. What is the rationale for holding this medication at this time? (5 points) Hydrochlorothiazide is a diuretic for the treatment of hypertension. The mechanism of action impact electrolytes...
Words: 2116 - Pages: 9
...Courtesy of L E K A R SPECIAL EDITION Authors: Marino, Paul L. Title: ICU Book, The, 3rd Edition Copyright ©2007 Lippincott Williams & Wilkins ISBN: 0-7817-4802-X Authors Dedication Quote Preface to Third Edition Preface to First Edition Acknowledgments Table of Contents Section I - Basic Science Review Basic Science Review Chapter 1 - Circulatory Blood Flow Chapter 2 - Oxygen and Carbon Dioxide Transport Section II - Preventive Practices in the Critically Ill Preventive Practices in the Critically Ill Chapter 3 - Infection Control in the ICU Chapter 4 - Alimentary Prophylaxis Chapter 5 - Venous Thromboembolism Section III - Vascular Access Vascular Access Chapter 6 - Establishing Venous Access Chapter 7 - The Indwelling Vascular Catheter Section IV - Hemodynamic Monitoring Hemodynamic Monitoring Chapter 8 - Arterial Blood Pressure Chapter 9 - The Pulmonary Artery Catheter Chapter 10 - Central Venous Pressure and Wedge Pressure Chapter 11 - Tissue Oxygenation Section V - Disorders of Circulatory Flow Disorders of Circulatory Flow Chapter 12 - Hemorrhage and Hypovolemia Chapter 13 - Colloid and Crystalloid Resuscitation Chapter 14 - Acute Heart Failure Syndromes Chapter 15 - Cardiac Arrest Chapter 16 - Hemodynamic Drug Infusions Section VI - Critical Care Cardiology Critical Care Cardiology Chapter 17 - Early Management of Acute Coronary Syndromes Chapter 18 - Tachyarrhythmias Section VII - Acute Respiratory Failure Acute Respiratory Failure Chapter 19 - Hypoxemia...
Words: 91543 - Pages: 367
...Admitting diagnosis(es) and clinical problems/complications/history: The patient was admitted on 2.13.13 with an admitting diagnosis of Syncope. Temp: 98.5, Pulse: 66, Resp: 16, Blood Pressure: 120/79, SpO2: 98%/room air. Patient stated that over the past two weeks she has become dizzy and fallen four to five times. On her day of admission she claims to have fallen again while brushing her teeth. This is the second time this has happened. Six years ago she presented with syncope in her home town of Leesburg, Florida. The first occurrence produced a negative medical workup. Both syncopal episodes appear to present during times of elevated stress in the client's life. The episode six years ago appears to correlate with a divorce from her husband of 15 years. The recent episode was preceded by a recent move from Leesburg, Florida to the Jacksonville, Florida area. The client denies any preceding symptoms of the syncopal episodes, however she states that she does have occurrences of nausea and dizziness without vomiting. Additionally, the client is complaining of unrelieved lower back and hip pain on her left side. The client was admitted for observation and evaluation due to her high number of falls. Near-syncope is a term that includes a dizzy feeling with the inability to stand upright. Syncope means a brief loss of consciousness. The loss of consciousness is usually caused by a decrease in blood flow to the brain. Decreased blood flow to the brain can be caused by a reduction...
Words: 1777 - Pages: 8
...CARIBBEAN EXAMINATIONS COUNCIL Caribbean Secondary Education Certificate CSEC® CHEMISTRY SYLLABUS Effective for examinations from May–June 2015 CXC 21/G/SYLL 13 Published by the Caribbean Examinations Council. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, or by any means electronic, photocopying, recording or otherwise without prior permission of the author or publisher. Correspondence related to the syllabus should be addressed to: The Pro-Registrar Caribbean Examinations Council Caenwood Centre 37 Arnold Road, Kingston 5, Jamaica Telephone Number: + 1 (876) 630-5200 Facsimile Number: + 1 (876) 967-4972 E-mail Address: cxcwzo@cxc.org Website: www.cxc.org Copyright © 2013 by Caribbean Examinations Council The Garrison, St Michael BB14038, Barbados CXC 21/G/SYLL 13 Contents RATIONALE ................................................................................................................................... AIMS ............................................................................................................................................. CANDIDATE POPULATION ............................................................................................................. SUGGESTED TIME-TABLE ALLOCATION ........................................................................................ ORGANISATION OF THE SYLLABUS .................................................
Words: 24316 - Pages: 98
...GUIDELINES FOR THE CLASSIFICATION AND CODING OF INDUSTRIAL AND HAZARDOUS WASTES TEXAS COMMISSION ON ENVIRONMENTAL QUALITY WASTE PERMITS DIVISION RG-022 Revised 2/05 GUIDELINES FOR THE CLASSIFICATION AND CODING OF INDUSTRIAL AND HAZARDOUS WASTES THIS IS A GUIDANCE DOCUMENT AND SHOULD NOT BE INTERPRETED AS A REPLACEMENT TO THE RULES. The rules for classifying and coding industrial wastes and hazardous wastes may be found in 30 Texas Administrative Code (TAC) Sections (§§) 335.501-.521 (Subchapter R). Prepared by: I&HW Permits Section, MC 130 Waste Permits Division Texas Commission on Environmental Quality P.O. Box 13087 Austin, Texas 78711-3087 RG-022 Texas Commission on Environmental Quality Revised February 2005 i Kathleen Hartnett White, Chairman R. B. “Ralph” Marquez, Commissioner Larry R. Soward, Commissioner Glenn Shankle, Executive Director Authorization for use or reproduction of any original material contained in this publication—that is, not obtained from other sources—is freely granted. The commission would appreciate acknowledgment. Copies of this publication are available for public use through the Texas State Library, other state depository libraries, and the TCEQ Library, in compliance with state depository law. For more information on TCEQ publications call 512/239-0028 or visit our Web site at: http://www.tceq.state.tx.us/publications Published and distributed by the Texas Commission on Environmental Quality PO Box...
Words: 20040 - Pages: 81
...A TECHNICAL REPORT ON STUDENTS INDUSTRIAL WORK EXPERINCE SCHEME (SIWES) AT WATER BOARD WATER WORKS DEPARTMENT KADUNA SOUTH PLANT AND WATER WORKS KADUNA, KADUNA STATE BY ADEJOH SAFIYA (UJ/2007/NS/SLT/0103) SUBMITTED TO DEPARTMENT OF SCIENCE LABORATORY TECHNOLOGY CHEMICAL PETROLEUM TECHNOLOGY OPTION IN PARTIAL FULFILMENT OF THE REQUIREMENT FOR THE AWARD BACHELOR OF SCIENCE DEGREE IN CHEMICAL/PETROLEUM TECH. OCTOBER, 2012 i DEDICATION This work is dedicated to almighty Allah for the gift of life. To my lovely Mum {Mariam} and my caring Elder brother {Muhammed Awwal} for their love and support both morally and financially throughout my experience. ii ACKNOWLEDGEMENT I would like to acknowledge my Industrial based Supervisor Engr. Aminu and the entire staff of the Kaduna state water board plant and water works for their guidance throughout the period of my training. I am also grateful to my departmental supervisors for their understanding and support. I would also like...
Words: 4778 - Pages: 20
...Medication/Dose/RouteClassificationGeneric/Trade Name | Action | ContraindicationAdverse Effects | Nursing Considerations | Acetaminophen/500mg/ By MouthAntipyretic& Analgesic (nonopioid)Acetaminophen/TylenolCarvedilol/6.25mg/By MouthAlpha- and beta-adrenergic blocker & AntihypertensiveCarvedilol/CoregDocusate Sodium/100mg/By MouthLaxative stool softenersDocusate Sodium/ColaceFurosemide/40mg/By MouthLoop diureticsFurosemide/Lasix | Reduces fever by acting directly on the hypothalamic heat-regulating center to cause vasodilation and sweating, which helps dissipate heat.Carvedilol causes vasodilation by blocking the activity of α-blockers, mainly at alpha-1 receptors. It exerts antihypertensive effect partly by reducing total peripheral resistance and vasodilation. It is used in patients with renal impairment, NIDDM or IDDM.Promotes incorporation of water into stool, resulting in softer fecal mass, may also promote electrolyte and water secretion into the colon. It increases the amount of water and fat absorbed by the feces, softening the stool and making it easier to pass.Inhibits the reabsorption of sodium and chloride from the loop of Henle and distal renal tubule. Increases renal excretion of water, sodium, chloride, magnesium, potassium, and calcium. | Contraindicated with allergy to acetaminophen. Use cautiously with impaired hepatic function, chronic alcoholism, pregnancy, lactation. Adverse effects CNS: Headache CV: Chest pain, dyspnea, myocardial damage when doses of 5–8 g/day are ingested daily for...
Words: 2080 - Pages: 9
...landfill by the Chemistry 1146 laboratory group, precautions were immediately taken and rigorous experimentations were begun to determine the identity of the compound. Determining the identity of this compound was very crucial for the safety of the community. The chemical and physical properties of the compound could then be identified and environmental hazards addressed. Questions that needed to be answered in relation to this unknown compound included: Is it a risk to people living nearby? What if it gets in the water supply? Does it contaminate the air? Is it reactive? Over a three week time-span the chemists experimented with the unknown compound to report the findings back to the community. After the unknown compound was identified, the chemists studied its properties and confirmed the identity by synthesizing the compound in the lab and comparing it to the unknown. Experimental Week 1 After a sample of the unknown compound (#21) was retrieved, various experiments were carried out to determine the chemical formula. An anion analysis was first performed on the unknown compound. A solution of the unknown compound was prepared by taking a small amount of the solid on the end of a scoopula and dissolving it in 2 mL of distilled water (DI water) in a test tube. The compound was then tested for the sulfate ion by placing 1 mL of the solution in a test tube and adding 1 mL 6 M HCl and 1 mL of BaCl₂ solution. A white precipitate proves the presence of a sulfate ion. (aq) + (aq)...
Words: 2392 - Pages: 10
...CH 220C ORGANIC CHEMISTRY LABORATORY Spring, 2015 Section Page 1. General Information 2 2. Safety Information 2 3. Attendance 3 Make-Up Policy 3 4. Laboratory Protocol 3 Assigned Reading 3 Pre-Lab Quizzes 3 Lab Notebook 5 Chemicals 5 Due Dates for Reports 5 5. Orientation 5 In-Lab Information 5 Library Information 5 6. Check-In 6 7. Grading Procedure 6 8. Policy on Cheating 7 9. TA Office Hours 8 10. Faculty Course CoordinatorS 8 11. Course Web Page 8 12. Hints to Minimize Frustration IN ORGANIC CHEMISTRY 8 13. Work Schedule 10 Lab Report Due Date Schedule 10 Experiments 10 14. Supplements 17 A. Extraction of Unknown 17 B. Recrystallization of Unknown Products 18 C. Methyl Benzoate 19 D. Synthesis of Luminol 20 E. Azo Violet 23 1. GENERAL INFORMATION PRE- and CO-REQUISITES Pre- and co-requisites for CH 220C listed in the Course Schedule. Important: Because the lecture and laboratory courses are co-requisites of each other, dropping one of them requires that you drop the other as well, unless the drop occurs during ...
Words: 8040 - Pages: 33
...triphenylmethanol from benzophenone via Grignard reaction. The product will be isolated through extractions and purified by recrystallization. Reaction efficiency will be evaluated through percent yield, percent recovery, and the purity of the final product will be determined by IR, TLC, and mp determination. Chemicals: bromobenzene, magnesium turnings, diethyl ether, benzophenone, biphenyl, triphenylmethanol, iodine, 6 M HCl, brine, anhydrous MgSO4 or Na2SO4, 10:90 EtOAc/hexanes. Glassware and equipment: 100 mL RBF, air condenser, Claisen adaptor, 60 and 125 mL addition funnel, short stem glass funnel, two 50 mL Erlenmeyer flasks, 10 mL graduated cylinder, lab jack, crystallizing dish, magnetic stir bar. Techniques: reflux, extraction, vacuum filtration, recrystallization, TLC, mp, IR spectroscopy. Introduction In 1912 Victor Grignard received the Nobel prize in chemistry for his work on the reaction that bears his name, a carbon-carbon bond-forming reaction by which almost any alcohol may be formed from appropriate alkyl halides and carbonyl compounds. The Grignard reagent RMgBr is easily formed by redox reaction of an alkyl halide with magnesium metal in anhydrous diethyl ether solvent. R-Br + Mg → RMgBr The Grignard reagent can be viewed as an ionic species consisting of carbanion R-, with Mg2+ counterion and an additional Br- counterion. The carbanion R- is very reactive, and functions both as an extremely strong base and an extremely strong nucleophile. O Br ...
Words: 2219 - Pages: 9
...better.” Mrs. C. also said that her husband has vomited, over the last 2 days. R.’s chief complaint (c/c) is abdominal pain, voiding frequently, and hasn’t been taking insulin due to nausea. Vital signs (RR) 32, and oxygen saturation (SAO2) 95%. He is alert & orientated (A&O) A&O x 1 (oriented only to person), and his mouth and mucous membranes are very dry. Doctor’s Orders: After seeing Mr. C. the doctor orders: CBC, Chem Panel, Electrolytes, UA with ketones, ABG, 12 lead EKG, and sliding scale insulin to be given IVP, oxygen at 2L/min per nasal cannula, and IV bolus of 500 cc/NS. After initiating a peripheral IV catheter, blood samples are drawn for labs and the nurse administers the 500 cc/NS and rechecked VS: Temperature (T) 100.3, P-106, BP-92/56, and RR-28. Labs The labs return with blood glucose of 625, K+5.3, bicarb (HCO3) 8 mEq/l, large amounts of ketones in urine and serum. ABG of pH-7.19, PO2-89, CO2-25, and HCO3-15. EKG The EKG is noted for tented T waves. Based off above initial findings, R. has hallmark signs and symptoms (s/s) of Diabetic Ketoacidosis (DKA) which include polyuria, gastrointestinal (GI) upset/abdominal pain, dehydration, orthostatic hypotension, bradypnea with deep respirations, also known as “Kusssmaul breathing.” Also, patient’s breath is acetone which is commonly interpreted as “fruity” and can be...
Words: 3702 - Pages: 15
...Clean Water Project Report Day 1- “The Balanced Equation” Documentary Notes In the documentary, “The Balanced Equation”, a group of high school girls tells their story of traveling to Kenya and the Dominican Republic to investigate and learn more about issues dealing with water in developing countries. The girls focus primarily on problems with water that exist in these countries and the water filtration systems being provided. According to the video, approximately 3.5 million people die from water-related illnesses each year, and over 800 million people do not have access to clean water today. The girls discover that portable point-of-use filtration devices are given to those in developing countries who don’t have access to clean water. Permanent water solutions, such as digging wells, have been tried, but often fail due to lack of maintenance and education. Wells often become contaminated with runoff water among other issues, so over 50% of these permanent solutions fail after 5 years. Instead, point-of-use water systems are distributed since they are portable and can be used at home. The girl’s spent their first night of their adventure in...
Words: 4665 - Pages: 19
...Attendance, P4 Lab Schedule, P4 Lab Replacement, P5 Lab Regulation 6.1 General Rules, P5 6.2 Safety Rules, P6 Lab Rules & Regulations on Computer Usage 7.1 ICT Computer Lab, P7 7.2 ICT Internet Lab, P8 Appendix 1 (Lab Replacement Flow Chart), P10 Appendix 2 (Lab Session Replacement Form), P11 Policy for Laboratory Usage after Office Hours, 10.1 Operating Procedure, P12 10.2 Warnings on liability, P12 10.3 Rules and Regulations, P12 Use of Laboratory After Office Hours 11.1 Appendix 3 (Application Form), P14 11.2 Appendix 4 (Student’s Declaration Form), P15 Ambulance Services, P16 Lab Safety Handbook on Chemical Hazards, Physical Hazards and Biological hazards, P17-P64 7 8 9 10 11 13 14 Universiti Tunku Abdul Rahman 2 Definitions • • • • • Lab Session: Time duration allocated for student to do lab experiment. Lab Sheet: A printed material usually contains a series of instructions and information given to the student on how to conduct lab experiment. Lab Report: A written report prepared by student based on individual observation and data analysis after the lab experiment. The format and requirements are usually stated in the lab sheet. Lab Coordinator: A person in charge of coordinating all the lab sessions of the semester and administrating lab matters. Lab Instructor: An academic staff (lecturer or tutor) in charge of the lab session. The lab instructor will give briefing and instructions to students during the lab session. 1. Introduction Practical lab is one...
Words: 14736 - Pages: 59
