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
Premium Ammonia Molecular diffusion
____________________ ____________________ ____________________ ____________________ 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. In order to determine the molecular weight of a particular substance which in this experiment’s case is a volatile liquid‚ the need to convert the liquid
Premium Ideal gas law Gas Water
Zimmermann · J. Büchs Glucose oxidation by Gluconobacter oxydans: characterization in shaking-flasks‚ scale-up and optimization of the pH profile Received: 20 September 2002 / Revised: 3 December 2002 / Accepted: 6 December 2002 / Published online: 26 February 2003 Springer-Verlag 2003 Abstract In this study‚ the advantage of a novel measuring device for the online determination of oxygen and carbon dioxide transfer rates in shaking-flasks is reported for glucose oxidation by Gluconobacter
Premium Enzyme Carbon dioxide PH
Low Molecular Weight Heparin Paper Low molecular weight heparin is typically used for patients who need to be treated for deep vein thrombosis. Deep vein thrombosis (DVT) is a blood clot (thrombus) in a deep vein usually in the legs. These clots are dangerous because they can break loose‚ travel through the bloodstream to the lungs‚ and block blood flow in the lungs (pulmonary embolism). There are many reasons why clots form in a patient. Mainly
Premium Pulmonary embolism Thrombosis Warfarin
onion‚ cut a 1 cm square from a fleshy piece of onion and then peel off a single layer of the red cells. If you are using rhubarb‚ peel a piece from the epidermis. If you are using toadflax peel a piece of the lower epidermis of a leaf. * Place the strip on a slide and cover it with a drop or two of distilled water. Add a cover slip. * Look at the cells through a microscope. Start with the low power lens. Draw and label 3 plant cells. * Take another strip of cells from your plant material
Premium Cell wall Cell Cell membrane
The aim of this experiment was to investigate the effect that a glucose concentration has on the rate of fermentation. This was done by adding a variety of different glucose concentration into a test tube‚ siting in a water bath. The carbon dioxide would be collected in the test tube and therefore would measure the rate of fermentation. The results parsley supported the hypothesis that‚ “If the glucose concentration increases‚ the rate of fermentation increases‚ therefore the more carbon dioxide
Premium Metabolism Glucose Carbon dioxide
The Effects Sodium Chloride has on pond water Introduction Ponds are depressions in the ground that fill with water from either run offs or melting snow or rain fall from many different weather changes. There are two types of ponds permanent and temporary. Ponds tend to be much smaller in size and are usually only six to ten feet in depth. This differs from a lake because the size of a lake is much larger and is much deeper. The temperature of a pond is usually the same from top to bottom and
Premium Salt Water Sodium chloride
WEEK 3 Discussion Question 1: Just Following Orders? Do you believe the sentence she received is just? Wasn’t she simply following orders? Why did Ms. Vinson make the ethical decisions that she made? In my opinion‚ from the two articles read I do not believe that the sentence of 5 months in prison that Ms Vinson received coincided with her level of involvement. Ms Vinson was the Senior of Corporate Reporting Department; for two years she chooses to continue to misrepresent and inflate
Premium Ethics Business ethics
Albumin: Why is it ImPortant? Lauren Maister-Green‚ RD; Alisha Chasey‚ MS‚ RD; Beth Spanier‚ RD; Meredith Gilliatt-Wimberly‚ MS‚ RD TIPS . . . • At each meal try to include one of these high quality protein foods: chicken‚ turkey‚ fish‚ beef‚ pork‚ or eggs. n monthly lab reviews‚ dialysis patients may be told that their albumin level is low and they need to eat more protein. But what is albumin? Why is an albumin blood test important? What factors affect albumin? How can albumin levels be
Premium Nutrition Blood Liver
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
Premium Petri dish Agar plate Diffusion