Abstract In this experiment‚ the absorbance of KMnO4 was measured by spectrophotometric method to determine the molar concentration and the molar extinction coefficient of KMnO4. In part 1‚ in order to determine the maximum absorbance wavelength of KMnO4‚ we measured the absorbance of the sample solution which contains KMnO4 at the wavelengths between 330nm and 660nm‚ and plotted the λ and A points; the λmax was 530nm. In part 2‚ the effect of concentration on the absorbance was examined. We prepared
Premium Light Electromagnetic radiation Visible spectrum
neutralising capacity (ANC) of 3 brands of calcium carbonate (CaCO3) tablets was determined by reacting the tablets in excess standardized hydrochloric acid (HCl) and then back-titrating with a standardized sodium hydroxide (NaOH) solution. Back titration was required for two reasons. Firstly‚ CaCO3 tablets are poorly water-soluble but dissolve rapidly in acid. Secondly‚ CaCO3 is a weak base so it is difficult to determine the end point of the reaction if titrated directly. Assuming good manufacturing
Premium PH Hydrochloric acid Titration
paternity fraud. (2007‚ Dec 12). The Berkshire Eagle. Retrieved from http://search.proquest.com/docview/379923439?accountid=14872 Creswell‚ J. (2009). Research design: Qualitative‚ quantitative‚ and mixed methods approaches (Laureate Education‚ Inc.‚ custom Ed.) Laureate Education‚ Inc. (Executive Producer). (2008). Quantitative methods‚ an example. Baltimore: Author Lincoln‚ Y.S.‚ & Guba‚ E.G. (1985). Naturalistic Inquiry. Thousand Oaks: CA. Sage. Mandatory DNA testing would protect against paternity
Premium Quantitative research Qualitative research Father
about socio economic development in the region of Magadi division by investing in a key player in the region- Magadi Soda Company. It is part of International Finance Corporation’s efforts to help people out of poverty by investing in the private sector. In this case‚ the Magadi Soda Ash Company is the key aspect of the private sector of magadi Division. Formerly known as the Magadi Soda Company‚ Tata Chemicals Magadi joined in the Tata group in 2005. The Tata Company is based in the Lake Magadi region
Premium International trade International trade Trona
A performance indicator or key performance indicator (KPI) is a type of performance measurement.[1] An organization may use KPIs to evaluate its success‚ or to evaluate the success of a particular activity in which it is engaged. Sometimes success is defined in terms of making progress toward strategic goals‚[2] but often success is simply the repeated‚ periodic achievement of some level of operational goal (e.g. zero defects‚ 10/10 customer satisfaction‚ etc.). Accordingly‚ choosing the right KPIs
Premium Strategic management Balanced scorecard Management
Acid-Base Titration Background Information A titration is a controlled addition of one substance into another substance. In an acid-base titration‚ the experimenter will add a base of known concentration to an acid of unknown concentration (or vice-versa). The goal of the titration is usually to use the substance of known concentration to determine the concentration of the other substance. In order to run a titration‚ the following materials are needed: • A buret filled with the base (or acid) of
Free Titration
Executive Summary Over the past two years‚ Jones Soda Company has successfully acquired strategic alliances with various companies in order to provide deeper and more diverse market exposure. Some of these companies include Barnes & Noble‚ Panera Bread‚ and Starbucks. Since Jones does not deal in multimillion dollar advertising campaigns‚ this is their best way to promote their brand. By offering their wide assortment of beverages in stores and restaurants‚ Jones has been able to sell more to
Premium Management Education Psychology
Statistics and Quantitative Methods ASSIGNMENT: 2 PREPARED FOR: CHOWDHURY PREPARED BY: VALLEY STATE UNIVERSITY DATE: 13. The Electrotech Corporation manufactures two industrial-sized electrical devices: generators and alternators. Both of these products require wiring and testing during the assembly process. Each generator requires 2 hours of wiring and 1 hour of testing and can be sold for a $250 profit. Each alternator requires 3 hours of wiring and 2 hours of testing and can
Premium Optimization Profit maximization Electrical generator
Prepare a critical analysis of a quantitative study focusing on protection of human participants‚ data collection‚ data management and analysis‚ problem statement‚ and interpretation of findings. The quantitative research article can be from your previous literature review or a new peer-reviewed article. Each study analysis will be 1‚000-1‚250 words and submitted in one document. As with the assignments in Topics 1-3‚ this should connect to your identified practice problem of interest. Refer to
Premium Scientific method Research Quantitative research
Evan Schrager 11/14/2011 Quantitative Easing Research Paper The term quantitative easing (QE) describes a process in which the Federal Reserve expands its balance sheet through purchasing back government bonds from financial institutions with electronically created funds. The government purchases‚ by way of account deposits‚ give banks the excess reserves required for them to create new money by the process of deposit multiplication from increased lending in the fractional reserve
Premium Reserve currency Central bank Federal Reserve System