The Ka and Molar Mass of a Monoprotic Weak Acid Chemistry Lab 152 Professor: James Giles November 7‚ 2012 Abstract: The purpose of this experiment was to determine the pKa‚ Ka‚ and molar mass of an unknown acid (#14). The pKa was found to be 3.88‚ the Ka was found to be 1.318 x 10 -4‚ and the molar mass was found to be 171.9 g/mol. Introduction Acids differ considerable as to their strength. The difference between weak and
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Analysis Paper: Fluid Volume Deficit “Fluid volume is a term that describes the balancing of input and output of fluid in the body” (Welch 2010). This balance can be affected by many factors: inadequate intake‚ shock‚ vomiting‚ diarrhea‚ or too much output. It can also be caused by third spacing. Fluid volume balance is very important to monitor patients because it can affect every body system and can easily be altered. Fluid volume deficit is more commonly referred to as dehydration. Euvolamia
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Cost‚ Volume‚ and Profit Cost-Volume-Profit (CVP) analysis is a managerial accounting tool that expresses the simplified relationship between cost‚ volume‚ and profit (or loss). CVP analysis is based on several factors and assumptions and uses a formula to express the relationship by equation or graphically and can be used with great effect by managers who understand the limitations of the analysis. Cost-Volume-Profit (CVP) analysis is a managerial accounting tool that expresses the simplified
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provided : 2 x 10‚000 CFM at 3.5 inch WC static pressure • The calculated temp raise with selected air flow 7.80 C • Static Pressure selected considering drop across suction filter‚ inlet‚ exit‚ silencer and ducting Number of air changes criteria: • Volume Of the Acc Comp = 278 m3 • Number of Air change/Hr = 60 (Meets NFPA and DEP 31.29.70.31 requirements) Fan sizing Turbine compartment Heat load criteria: • Q = Heat Rejection = 1273469 (BTU/Hr) = 5348 ( Kcal/min) • Design compartment temp - 1200
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Traffic Volume Studies Traffic Volume Studies • Engineers often use counts of number of vehicles or pedestrians passing a point‚ entering an intersection‚ or using a particular facility such as travel lane‚ crosswalk or sidewalk. Counts are usually samples of actual volumes‚ although continuous counting is also sometimes performed. Manual Observation Typical equipment needed for manual counts are: Tally Sheets‚ or • Mechanical Count Boards‚ or • Sampling periods may range from
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Butyl(21‚000t) Group 3 - 3/13 Q1. The meaning and accuracy of the volume variance. • NASA Rubber Division의 Sales Performance(1986) Actual Net sales Revenue 63‚239‚000 Budget 58‚660‚000 Deviation 4‚579‚000 exceed 3‚735‚000 exceed Gross Margin ※ Sales Volume Up 40‚945‚000 37‚210‚000 ※ Feedstock Cost Down Group 3 - 4/13 • NASA Rubber Division - Net Contribution(1986) Actual Budget Deviation Volume Variance - 11‚375‚000 -6‚125‚000 5‚250‚000 U Gross Profit / NSR
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Density‚ Mass and Volume Density is the measure of how tightly the particles of a substance are packed into a given volume. L=1cm B=1cm H=1cm Aluminium=1cm3 Volume=lbh Volume= 1cm*1cm*1cm Volume= 1cm3 Iron 1cm3 1cm3 of iron would be however than 1 cm of aluminium. The density of the iron cube would be greater than the density of the aluminium cube. One explanation from that is that the particles/molecules in the iron cube are more tightly
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How Chromatography Helps The Human Race Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates. “Chromatography is done by making of a mixture move past the solids‚ or across the surface of a solid‚ like paper. The mixture is poured onto a solid surface. As the different components of the liquid run down the solid‚ some of them move more slowly than other. A component
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Core Principles of German Volume Training German Volume Training isn’t rocket science. There’s no elaborate formulas to figure out‚ and no training techniques to be mastered. GVT is built around three simple‚ core principles: 1. One Exercise. You perform one exercise per body part. That’s it. Stick with heavier‚ compound-style lifts that tax major muscle groups. Because you will be performing a limited number ofexercises per week‚ proper exercise selection is critical in maximizing the effects
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Exploring Pressure-Volume Relationships Table 1: Pressure vs. Volume of Container mL Torr 5 1417 7 1089 10 749 11 691.7 13 605.5 17 469.5 20 405.7 Chart 1: Chart 2: Part B Table 2: Data for determining R Mass Mg Volume HCl Volume Of Container 0.29 g 5 mL 144.544 mL Temperature Vapor Pressure 19.9℃ 17.55 torr Initial Pressure Final Pressure 499.9 torr 692.2 torr Part C Experimental Design A flask with the same volume as Part B was stoppered
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