"Lactose solubility" Essays and Research Papers

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    CHEMICAL EQUILIBRIUM Cristian C. Calizo Joshua Kevin K. Uy College of Engineering College of Engineering Date Performed: Jan. 7‚ 2014 Date Submitted: Jan 14‚ 2013 Methodology Iron (II) – Silver Ions System 1 ml each of 0.10 M FeSO4 and 0.10 M AgNO3 were mixed and shaked in a 4-inch test tube. The mixture was centrifuged‚ and the supernate was decantated into a test tube. Separate drops of the supernate was tested for presence of Fe2+‚ Ag+ and Fe

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    DETERMINATION OF THE SOLUBILITY PRODUCT CONSTANT OF CALCIUM HYDROXIDE ABSTRACT This experiment aimed to determine the solubility product constant (Ksp) of Ca(OH)2 as well as to evaluate the effects of common and non-common ions on its solubility. Ca(OH)2 solids were dissolved in eight various media: distilled water‚ 1.0 M KCl‚ 0.5 M KCl‚ 0.1 M KCl‚ 0.05 M KCl‚ 0.005 M KCl‚ 0.001 M KCl‚ and 0.1 M Ca(NO3)2. The concentration of dissociated OH- concentrations was determined by means of titrimetric

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    Determination of the Solubility Product Constant of Calcium Hydroxide Introduction The equilibrium constant for the solubility equilibrium between an ionic solid and its ions is called solubility constant [1] ‚ Ksp of the solute. For example‚ the solubility product is defined by MxAy(s) ⇋xM(aq)y++ yA(aq)x- (1) Where M is the metal cation‚ A is the anion‚ x and y are the corresponding charges of the ions. The equilibrium expression is Ksp=[MY+]x[AX-]Y (2)

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    | [Solubility Product Constant] | Experiment 11 | | Molly McCabe | 4/18/2013 | | Data Tables: Part 1 and Part 2 Experimental Data: Standard | Calculated volume of copper sulfate in standards | Absorbance values | Blank | 0.0 mL | 0.0 | 1 | 1.25 mL | 0.094 | 2 | 3.75 mL | 0.065 | 3 | 2.50 mL | 0.099 | 4 | 3.50 mL | 0.129 | 5 | 5.00 mL | 0.187 | Collected Data | Test tube 1 | Test tube 2 | Test tube 3 | Test tube 4 | Test Tube 5 | Initial volume (mL) | 0.05

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    Lactose

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    LACTOSE – C12H22O11 Chemical and Biochemical Properties Lactose is very stable and inert from a chemical point of view. It has no significant tendency to react with the drug or other components of a formulation. Some remarks on the chemical properties of lactose are useful however‚ the low hygroscopicity of crystalline lactose supports its virtual chemical inertness. Most chemical reactions of lactose occur noticeably only in aqueous environment. Because lactose has a very low tendency to attract

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    An Informal Letter

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    Replacer) or lactose free milk‚a towel‚tray‚litter sand a syringe or cat milk bottle and wetfood.You may use dryfood but be sure to mix it with water if the kitten is below 2 months old. If the kitten shivers‚wrap the kitten‚not too tight or too loose and put it in your shirt as it cannot generate it’s own heat.Next‚feed the kitten with KMR and wetfood.Remember‚never feed the kitten wiith cow milk or lactose containing drink because cats are lactose intolerant‚If

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    Lab Report

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    unit 7.3 the experiment tested the ability of lactase to specifically bind and interact with lactose compared to maltose. In unit 7.4 the experiment tested the role‚ if any‚ that metal ions have on the activity of lactase. My hypothesis for unit 7.3 was knowing that lactase is specific for lactoselactose will separate into galactose and glucose‚ as maltose will not change (153-155). Lactase should like lactose. For unit 7.4 my hypothesis was that EDTA will remove the ions‚ and will not work. Materials/Methods

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    Latase Lab Report

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    Lactase is an enzyme that splits up the disaccharide lactose into monosaccharides glucose and galactose‚ but its function diminishes with age resulting in a wide use of lactase supplements. This enzyme functions under specific conditions‚ so we investigated the effect different salt concentrations have on the enzyme activity. Serial dilutions were performed to prepare a lactase solution as well as twenty percent‚ fifteen percent‚ and five percent concentrations of NaCl. Three different treatments

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    Lactase Enzyme Lab

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    (lactase) to a specific substrate (lactose). Students will observe the actions of the enzyme and how shape is important to enzyme reactions. Background information: Lactose‚ the sugar found in milk‚ is a disaccharide composed of glucose and galactose (both six-sided sugars). Sucrose‚ ordinary table sugar‚ is also a disaccharide composed of fructose and glucose. Glucose is a six-sided sugar and fructose is a five-sided sugar. Lactase is an enzyme that breaks lactose down into galactose and glucose

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    Chemistry in Daily Life

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    the multiplication of certain useful bacteria which increase the size of the food and make it more filling and soft. 6. Soap is formed by molecules with a "head" which likes water (hydrophilic) and a long chain which hates it (hydrophobic). 7. Lactose is the main complex sugar found in the milk. It’s a pretty big compound formed by two smaller components: glucose and galactose. Such a big compound cannot get through the intestinal wall and into the bloodstream‚ so we need "something" to break it

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