| 10/19/2011 | | | | How to Make Litmus Paper English Lesson: Procedure | | | | | | Dianne Anderson from class 7-3 | How to Make Litmus Paper English Lesson: Procedure Litmus paper is a paper that can indicate the level of acid or base of some substances. Litmus paper usually made from absorbing paper that contains red cabbage essence. Litmus paper is commonly used in school and university laboratory. Below are the steps how to make Litmus paper. Ingredients/Tools: * A
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Progress Report Scaffold Which brand of paper towel is most absorbent? Aim: The aim of this experiment is to see which brand of paper towel absorbs the most water out of a 200mL beaker. Hypothesis: In this experiment my reasearch has shown that Kleenex Viva would be most likely to absorb the most water as to the amount that the Woolworths homebrand would because of its thickness and the texture of the paper. Variables: |Independent variable |The independent variable
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Osmosis Trial experiment Aim: Our aim in this experiment is to find out which vegetable absorbs the most liquid over a given time due to osmosis. Chosen Apparatus: we will need to use: six test tubes; a test tube rack; an apple; a potato; a cork borer; a measuring cylinder; sugar solution; scales to measure in milligrams; a ruler; a knife; and a pair of tweezers. Apparatus Why we chose it Advantages Alternative equipment apple Its an absorbent fruit and is similar to a potato It
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Dissolution[edit] In the most common situation‚ a tablet is ingested and passes through the esophagus to the stomach. The rate of dissolution is a key target for controlling the duration of a drug’s effect‚ and as such‚ several dosage forms that contain the same active ingredient may be available‚ differing only in the rate of dissolution. If a drug is supplied in a form that is not readily dissolved‚ the drug may be released more gradually over time with a longer duration of action. Having a
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spectrophotometric analysis of copper sulphate Introduction: In the modern usage. The term spectroscopy includes a large group of techniques which differ widely in their mode of application and information they reveal. As a useful working definition‚ spectroscopy is a study of interaction of electromagnetic radiation with matter in the experiment it means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent
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present in concentrations significant relative to chlorophyll a‚ a serious error may be introduced into chlorophyll data using the present spectrophotometric techniques ( Richards with Thompson 1952; Parsons and Strickland 1963)‚ because the absorption of light by the degraded forms is not distinguished from that absorbed by active chlorophyll. Chlorophyll a can readily be converted to pheophytin simply by the addition of a weak or dilute acid‚ either oxalic acid or 1 N HCl‚ and when the
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atoms and molecules are determined. This technique is spectroscopy where it absorbs‚ emits‚ or scatters electromagnetic radiation. Electromagnetic radiation has particle-like properties having photons and quantum and wave-like properties with frequency and wavelength. To make molecules visible through light‚ the wavelength of the molecule should be longer than the wavelength of the light. One spectroscopic
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Culture and Science University‚ Tehran‚ Iran b c a r t i c l e in f o Article history: Received 21 April 2010 Received in revised form 14 August 2010 Accepted 18 August 2010 Available online 26 August 2010 Keywords: HSA Lomefloxacin Colchicine Spectroscopy Molecular dynamic a b s t r a c t Combination of several drugs is often necessary especially during long-term therapy. The competitive binding drugs can cause a decrease in the amount of drug bound to protein and increase the biological active
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electromagnetic spectrum. By seeing which colors are absorbed and which are reflected scientists can determine what a substance is without having to touch them. This is possible because each substance has a specific absorbance spectrum‚ meaning that the absorption spectrum of two different substances cannot be the same. Purpose/Hypothesis: 1. The purpose of the experiment was to determine the extinction coefficient for a solution of DCPIP. This was done by using the concentration‚ absorbance‚ wavelength
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QUANTITATIVE DETERMINATION OF COPPER (II) CONCENTRATION BY SPECTROPHOTOMETRY D.DEL PRADO1‚ J. BELANO1‚ M.MAHUSAY2‚and M.FRANCISCO2 1 DEPARTMENT OF FOOD SCIENCE AND NUTRITION‚ COLLEGE OF HOME ECONOMICS 2INSTITUTE OF CHEMISTRY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHLIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: 12 MARCH 2013 DATE PERFORMED: 7 MARCH 2013 ------------------------------------------------- ------------------------------------------------- ABSTRACT -------------------------------------------------
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