37 g distilled water, 2 g NaCl, 10 g chicken meat (Betagro Public Co., Ltd, Thailand), 10 g egg yolk (Charoen Pokphand Foods Public Co., Ltd, Thailand) and 2 g dried seaweed (Daesang Corporation, the Republic of Korea), 1.60 g/100 g flour of guar gum (Weinfelderstrasse 13, Spain), and 1.90 g/100 g flour of carboxymethyl cellulose (CMC)(Ashland, France). Wheat flour, dried seaweed, and chicken meat were mixed in the mixing bowl prior to the addition of egg yolk, 7 g distilled water, and 30 g distilled
Analysis 1.For both A and B, which of the substances diffused through the membrane? How do you know? For both activities A and B, water was observed to have diffused through both selectively permeable membranes. For instance, during activity A, the iodine and water mixture, was seen to have diffused into the cell membrane, due to the starches color change to a dark blackish blue. Furthermore, at closer examination, it is shown that the iodine is the hypotonic solution, that diffused into the hypertonic
one of them. The same powder will have the same physical and chemical properties. Equipment and Materials: - 2 Well plates, scoopula, distilled water bottle, goggles, test tubes, test tube rack, eye droppers, wooden splint , squares of papers, labels - Icing sugar, cornstarch, Aspirin powder, baking powder, baking soda, distilled water, universal indicator, vinegar, iodine, and mystery powder A Procedure: (you can write out the procedure
NaOH (concentration unknown), Distilled Water, Indicator (bromothymol blue) Procedure: 1. Using your graduated cylinder, pour 5.0mL of 0.10M HCl into your Erlenmeyer flask. 2. Add exactly 10.0mL of distilled water to your flask. 3. Add three drops of indicator to your flask using the dropper bottle.
Qualitative analysis, an analysis to determine the identity of a compound, was done on an unknown solution 4, passed by the Teaching Assistant at the beginning of the lab, to identify the cations contained. This unknown solution was known to contain two of four possible ions. The first section or Part A was to determine the existence of either lead ion or silver ion and the second section or Part B to determine the presence of barium ions or calcium ions. In addition, the cation flame test was used
Analysis of Amines by EMIT, TOXI-Lab, and Gas Chromatography/ Mass Spectroscopy Anthony Cappellano Marta Concheiro-Guisan FOS 416 6 May 2015 Introduction A variety of techniques can be used to determine the presence of amphetamines and methamphetamines within a given urine sample. These methods include EMIT screening, Toxi-Lab, and GC-MS. EMIT screening can be used to determine the presence or absence of amphetamine and methamphetamines in a urine sample. EMIT works on the basic
Introduction Hard water is formed when water passes through or over limestone or chalk areas and calcium and magnesium ions dissolve into the water. The hardness is made up of two parts: temporary (carbonate) and permanent (non-carbonate) hardness. When water is boiled, calcium carbonate scale can form, which can deposit on things like kettle elements. The scale will not stick to kettles that have a plastic polypropylene lining but will float on the surface. The permanent hardness that comprises
Saliva • Negative control: Water Constants: • The same amount of water, saliva, and HCI added to each circle. • Same sprays of iodine on each side of the paper. Hypothesis: If we add hydrochloric acid to saliva, then the acid will affect the pH of the amylase in saliva because hydrochloric acid is a very corrosive acid that breaks down food in our stomach, and amylase is not present in our stomach. Materials: • Paper, big enough to draw in three circles. • Pencil • Saliva • Water • HCI (hydrochloric
tested negative along with the third container of distilled water which tested negative on the meter. For four container of salt solution it tested positive and the sucrose solution showed a faint light from the bulb registering as slightly conductive. Using new containers (2) one was marked with Expo and the other with sharpie. In the first test distilled the Expo but not sharpie. It redone again, this time with sugar water, and salt water. Both yield the same results, in which both dissolved the
Analysis: Part one Diffusion through a dialysis membrane in an artificial (model) cell: We can show diffusion or osmosis by making an arifical cell using a bag made of dialysis tubing and placing it in a beaker of water. The bag represents a cell; the dialysis tubing represents the cell membrane. Inside the bag or your artificial cell, is your glucose, and starch. Outside the artificial cell is only water. Glucose is a small molecule and will diffuse out of the bag into the water in the beaker