3.245g 0.11M 0.11M = mol/0.100L = 0.011 mol (249.5896g) = 2.745g 0.090M 0.090M = mol/0.100L = 0.009 mol (249.5896g) = 2.246g 0.070M 0.070M = mol/0.100L = 0.007 mol (249.5896g) = 1.747g Concentration (M) Wavelength Determination (Trial One) Wavelength Determination (Trial Two) 0.13M 50%T 49%T 0.11M 55%T 54%T 0.090M 62%T 59%T 0.070M 68%T 67%T Concentration (M) Absorbance Measurements (Trial One) 2-log(%T) Absorbance Measurements (Trial Two) 2-log(%T) 0.13M 0.30M 0.30M 0.11M 0
Premium Concentration Absorbance Sulfuric acid
22 MINISTRY OF EDUCATION FIJI SCHOOL LEAVING CERTIFICATE EXAMINATION 2013 ENGLISH COPYRIGHT: MINISTRY OF EDUCATION‚ FIJI‚ 2013. 2 MINISTRY OF EDUCATION FIJI SCHOOL LEAVING CERTIFICATE EXAMINATION – 2013 EXAMINER’S REPORT ENGLISH INTRODUCTION A total of 12‚ 058 candidates sat the English paper in the 2013 Fiji School Leaving Certificate Examination. This report is based on the comments received from the 44 markers who marked the candidates’ scripts in 2013. It has been compiled to reflect on
Premium Question Writing Multiple choice
For publicly traded companies‚ the Sarbanes-Oxley Act of 2002 requires an audit of internal controls. The purpose of an internal control evaluation is to evaluate risk‚ which offers auditors a basis for audit planning and provides useful information to management ("Sox Law"‚ 2006). Auditors typically use the five basic components of internal control to approve the entire system. According to Louwers‚ Ramsay‚ Sinason‚ and Strawser (2007) the five components to internal controls include control
Premium Internal control Auditing Audit
Neutralization Titrations: The Determination of Sodium Carbonate from Unknown Soda Ash Unknown # I. Purpose: The goal of this experiment is to determine the weight % of Na2CO3 through the preparation of NaOH and HCl standards. The molarity of the standards will be found through titration of KHP for NaOH‚ HCl vs the known NaOH‚ and the unknown Soda Ash sample vs the known HCl. II. Equations and Sample Calculations: Titration of HCl with NaOH: Complete Equation: HCl (aq) + NaOH (aq)
Premium Sodium hydroxide PH indicator Titration
and Architecture Saint Louis University Group No. 12 Members: DEMOT‚ Judy Ann SOMERA‚ Randolf P. TIPAYNO‚ Samantha TORZAR‚ Precious Imee I. Signatures: ____________________ ____________________ ____________________ ____________________ Title: Determination of Molecular Weight of a Volatile Liquid By Vaporization: Dumas Method Background of the Study Problem In this experiment‚ an unknown liquid is in need to be identified and one of the key factors to identify it is to determine its molecular weight
Premium Ideal gas law Gas Water
Experiment 4A: Determination of a Partition Coefficient for Benzoic Acid in Methylene Chloride and Water Experiment 4B: Solvent Extraction I: Acid-Base Extraction Using the System Benzoic Acid‚ Methylene Chloride‚ and Sodium Bicarbonate Solution Objective A: To accustom participants (students) to general procedures that are used to obtain a partition coefficient at the microscale level. We will gain experience in such practices as the transfer of microliter volumes of solutions with a Pasteur filter
Premium Solvent Sodium bicarbonate Solubility
References: 1. Department of the Interior‚ Fish and Wildlife Service: 50 CFR Part 17. (2008). Endangered and Threatened Wildlife and Plants; Determination of Threatened Status for the Polar Bear (Ursus maritimus) Throughout Its Range; Final Rule. Federal Register: Vol. 73‚ No. 95. Washington‚ DC: U.S. Government Printing Office. Retrieved from: http://frwebgate.access.gpo.gov/cgi-bin/getpage
Premium Polar bear Bear Endangered species
After looking at the title of the poem “Ex-Basketball Player‚” I assume it is about a former basketball player and his life now. After I read the poem‚ I find out that John Updike‚ the author‚ starts the first paragraph by describing a town. He tells about the trolley tracks and some of the stores‚ including a plaza and a garage. Then‚ the author goes on to introduce a character in the poem‚ Flick Webb‚ who helps in the garage in town. In the second paragraph‚ the author explains that Webb used to
Premium Basketball High school Time
Quantitative Determination of Sulphate by Gravimetric Analysis Table of Contents: 1. Synopsis 2. Objective 3. Theory 3.1: Summary 3.2: Technique 3.3: Chemicals 3.4: Instruments 4. Procedures 4.1: Precipitation of BaSO₄ 4.2: Washing and Filtration of BaSO₄ Precipitate 4.3: Drying and Weighing of BaSO₄ Precipitate 5. Results and Calculations 6. Discussions 7. Conclusion 8. References 1. Synopsis: This report is written about determining
Premium Chemistry Acid PH
Determination of the Composition of Cobalt Oxalate Hydrate Experiment 12 Robbie Kinsey Partner: Debnil Chowdhury Chem. 1312-D TA’s: Russell Dondero & Sylvester Mosley February 9‚ 2000 Purpose The purpose of this lab was to determine the percent cobalt and oxalate by mass‚ and with that information‚ the empirical formula for cobalt oxalate hydrate‚ using the general formula Coa(C2O4)b.cH2O. Procedure The powdered cobalt oxalate
Premium Titration Sulfuric acid Potassium permanganate