Lab 1: DETERMINATION OF DISSOLVED OXYGEN BY WINKLER TITRATION 1. Background Knowledge of the dissolved oxygen (O2) concentration in seawater is often necessary in environmental and marine science. It may be used by physical oceanographers to study water masses in the ocean. It provides the marine biologist with a means of measuring primary production - particularly in laboratory cultures. For the marine chemist‚ it provides a measure of the redox potential of the water column. The concentration of
Free Titration Iodine
Determining the Unknown Concentration of NaHCO3 (aq) Through Titration Introduction Titration is the accurate addition of a titrant- solution in a burette- into a measured volume of a sample (Kessel‚ 2003). There are many different types of titration‚ such as acid-base reaction‚ redox reactions‚ precipitation reaction and more (Dohrman). In this lab an acid base titration will be explored. In an acid-base titration‚ the concentration of an acid or base is unknown and is determined by the adding
Premium Chemistry PH indicator Sodium hydroxide
The first chapter discusses the basics of financial management. How critical is financial decision to social welfare? Reflect on the oil spill disaster in the gulf. Is it all about making money? Financial decisions are extremely critical to social welfare. Many individuals have the state of mind that emphasizes the belief of how social welfare can be pursued through exercising one’s choice and making provisions to obtain the means to be financially stable. The world is increasingly becoming
Premium Free cash flow Decision making Finance
Joyce‚ Good point on a potential impact on information technology in the workplace. While the manufacturing industries take a hit‚ it seems like the the individuals that are employed are working harder or longer hours than they did in the past to achieve the bottom line. There is no doubt that technology‚ automation‚ foreign competition have increased productivity. On a positive note technology can make people more wealthy by freeing up resources to address more problems‚ satisfy the consumers
Premium Speech recognition Industry Remote control
Rapid fire debate: 4 one minute rounds > presentation‚ rebuttal‚ response‚ and summery. First person to speak has choice of perspective. Opponent must take opposing views. Final power point: stuff Claim Type Questions Types of Support Organizational Strategy Fact Did it happen Does it exist Is it true Is it a fact Inductive reasoning Quoting Authorities Chronological Topical Definition What is it What is it like How do we clarify it N/A Topical Compare/contrast Cause What is the
Premium Inductive reasoning Malware Logic
Mapping Your Future My degree program at Kaplan University is Associate of Applied Science in Medical Assisting. I am taking online classes here at Kaplan. National median salary for a Medical Assistant is around 30‚550 dollars‚ (www.bls.gov). Depending on what state you’re in the salary will vary. For my state which is Indiana it’s around 28‚800 dollars‚ (www.bls.gov). I am sure that being employed somewhere for a very long time you salary might rise a little. I am not sure at this moment
Premium Medical assistant Office suite Microsoft Office
"Hocus-Pocus Accounting" by Douglas R. Carmichael‚ Journal of Accountancy‚ October 1999; Vol. 188‚ Iss. 4; pg. 59‚ 5 pgs Abstract: SEC Chairman Arthur Levitt decried what he termed "accounting hocus-pocus" and called for coordinated efforts to uncover it. He targeted the practice by some companies of improperly boosting reported earnings by manipulating the recognition of revenue. Among the most common methods of doing this are the bill-and-hold transaction and a long list of sham transaction involving
Premium Audit Generally Accepted Accounting Principles Financial statements
Centralia No.5 Student: Munkhkhishig Tsevegmed Strayer University Modern Public Administration PAD 500 Dr. Ronald E. Fitzgerald Friday‚ January 25‚ 2013 Centralia No. 5 In terms of logistical alternatives there are a few things mine inspector Driscoll Scanlan could have suggested in order to better inspect the mines. Scanlan could have submitted more detailed reports that could have explained why the mines and working conditions were such a danger. Documentation is not only an effective
Premium Safety Coal mining Coal
Experiment 2 Acid/Base Titration John J. Purdue CHM 321 – Fall 2012 TA: Scott Cole Section 1 September 4‚ 2012 Unknown Concentration: X.XX ± X.XX M (@95% confidence interval) (adapted from a report prepared by N. Skrynnikov‚ 2009) Abstract The concentration of an unknown acid (HA) solution was determined by titration with a standardized solution of sodium hydroxide. The standardization of NaOH was done by titration with a solid acid sample‚ potassium hydrogen phthalate (KHP)‚ and phenolphthalein
Premium
1. Introduction 2 2. Graphs 2.1 HC2H3O2 titration curve 3 2.2 H3PO4 titration curve 4 2.3 H2A titration curve 5 3. Calculations 3.1 HC2H3O2 Calculations a. Exact molarity of the HC2H3O2 solution 6 b. Ka from the initial pH 6 c. Ka from the pH at halfway point 6 d. Ka from the pH at the end point 7 3.2 H3PO4 Calculations a. Exact molarity of the H3PO4 solution 7 b. Ka1 from
Premium UCI race classifications Acetic acid Acid dissociation constant