Collecting Butane Gas The purpose of the lab was to determine the molecular mass of Butane‚ and this was done by using the ideal gas law (PV=nRT). The materials used were: match‚ funnel‚ bucket‚ cylinder‚ thermometer‚ lighter‚ scale‚ and a wooden flynt. These materials are used to help collect and test the Butane gas. Butane gas was used because it is ideal at standard temperature and pressure. Procedure: 1. Rinse bucket and fill three fourths full. 2. Rinse all glassware. 3. Place
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Upper Saddle River‚ NJ: Prentice Hall 2007. Weisstein‚ E. W. (2014). Roundoff Error. Retrieved July 22‚ 2014 from the world wide web: http://mathworld.wolfram.com/RoundoffError.html Experiment 17. Thermodynamics of Borax Solubility Chemistry 212 Lab: Simultaneous Determination of Several Thermodynamic Quantities: K‚ ∆G°‚ ∆H°‚ and ∆S°
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H Week 8 Week 8 Lab: Molecular Biology Review Test Submission: Molecular Biology Lab Assessment Review Test Submission: Molecular Biology Lab Assessment Us er Cours e Introduction To Biology Tes t Molecular Biology Lab As s es s m ent Started 8/19/14 10:14 AM Subm itted 8/19/14 10:22 AM Status Com pleted Attem pt Score 27 out of 30 points Tim e Elaps ed 7 m inutes out of 2 hours . Ins tructions
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The Effect of Molecular Weight on the Diffusion Rate in Substances Nadjah B. Hadji Amer Gladys A. Oliveros Rochelle R. Yaῆez Jan Remon B. Caliguid Group 2- Sec. W78-1 August 14‚ 2013 A scientific paper submitted in partial fulfilment of requirements in Biology 101.1 under Prof. Kimverly Hazel Coronel‚ 1st sem‚ 2013-2014 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using the agar-water gel test. The agar-water gel set up was composed of a six petri
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diluted serum samples were centrifuged at 2‚000×g for 10 min and 10‚000×g for 30 min at 4 °C to remove dead cells and cell debris. The supernatant was transferred into Ultra-ClearTM tubes (Beckman Coulter‚ Indianapolis‚ IN) and centrifuged at 100‚000×g using a Beckman Optima XL-70 Ultracentrifuge for 70 min at 4 °C. The supernatant was removed with a pipette and 2 mm of supernatant remained above the pellet. After one cycle of ultracentrifugation‚ it was not possible to remove all of the serum supernatant
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Molecule Polarity PhET Lab A study of electronegativity‚ bond polarity‚ and molecular polarity Introduction: In this atomic-level simulation‚ you will investigate how atoms’ electronegativity value affects the bonds they produce. When two atoms bond‚ a pair of electrons is shared between atoms. Electronegativity is a measure of a single atom’s ability to hoard electrons shared in that bond. In this lab you will work diligently‚ at your own pace‚ to answer a number of questions. To begin‚ from
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EFFECTS OF MOLECULAR WEIGHT ON THE RATE OF DIFFUSION OF SUBSTANCES PRINCESS AYNAH D. SANGGACALA Biology 101.1 Professor Christina A. Barazona September 15‚ 2014 THE EFFECTS OF MOLECULAR WEIGHT ON THE RATE OF DIFFUSION OF SUBSTANCES In partial fulfillment of the requirement For Biology 101.1 By Princess Aynah D. Sanggacala Professor Christina A. Barazona September 15‚ 2014 ABSTRACT The effect of molecular weight on the rate
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The Effect of Molecular Weight on the Diffusion Rate of Substances Jesselyn P. Rodriguez Group 4 Section X-2L August 13‚ 2013 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ABSTRACT The effect of molecular weight on the rate of diffusion of substances is tested using two tests: the glass tube test and the agar-water gel test. In the glass tube test‚ two cotton balls were soaked
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Faculty of Pharmacy EFFECT OF pH ON ENZYMATIC ACTIVITY Abogado‚ Paula Isabel‚ Agustin‚ Nikka Rebecca‚ Andres‚ Mary Anne B.‚ *Austria‚ Beatrice April‚ Baybay‚ Jan Miko Aaron 2BMT I. ABSTRACT pH greatly affects the activity of enzymes. There is a point or pH level where maximum activity of enzyme can be achieved‚ this is called optimum pH. Invertase was extracted from yeast and used as the detanured enzymes. Two sets of six test tubes were each added with different pH level of buffered solution:
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ABSTRACT The effect of molecular weight on the rate of diffusion was measured using two tests namely: the glass tube test and the agar-water test. The set-up of the glass tube test used two cotton balls of the same size. One cotton ball is moistened with hydrochloric acid (HCl) and the other one is moistened with ammonium hydroxide (NH4OH). The two cotton balls were inserted in both ends of the glass tube. NH4OH which has a lighter molecular weight (35.0459 g/mole) diffused with a faster rate (dave=20
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