Solubility Essays

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    SOLUBILITY AND SOLUBILITY PRODUCT OBJECTIVE In this experiment you will determine the solubility and solubility product of a sparingly soluble salt, potassium hydrogen tartrate, and also in four solutions containing a common ion. INTRODUCTION When a salt of low dissolubility dissolves in water, equilibrium is established between the solid solute and the dissolved ions. There are two terms used in discussing this condition. The first is solubility, which is the maximum amount of salt that will

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    Essay On Solubility

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    Solubility of a Salt Introduction: The solubility of a pure substance in a particular solvent is the quantity of that substance that will dissolve in a given amount of a solvent. Solubility varies with the temperature of the solvent. Thus, solubility must be expressed as quantity of solute per quantity of solvent at a specific temperature. For most ionic solids, especially salts, and water, solubility varies directly with the temperature. That is, the higher the temperature of the solvent (water)

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    Solubility Lab Report

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    Solubility Enhancement by Chemical Modification Method Abstract Solubility, the phenomenon of dissolution of solute in solvent to give a homogenous system. It is an important parameters to achieve optimum concentration of drug in systemic circulation for desired pharmacological response. Oral route is the most desirable and preferred method of administering therapeutic agents for their systemic effects, but poor solubility of drug major problem encountered with formulation development

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    type of chemical (ionic, molecular, macromolecular and metallic) has its own set of properties, by testing these properties and finding them out for each chemical, it was possible to classify them. The properties tested during this experiment were solubility in water, toluene, and ethanol and the electrical resistance for those soluble in water. The melting point was tested for the two unknown chemicals. II. MATERIALS AND PROCEDURES List of chemicals used: Sodium nitrate,

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    5: Study of Solubility Equilibrium Aim To determine the solubility product constant Ksp of a sparingly soluble salt potassium hydrogen tartrate (KHC4H4O6) in water To calculate the change in enthalpy (ΔH° reaction) and entropy (ΔS° reaction) of the reaction Results and Discussion The dissociation reaction of potassium hydrogen tartrate (KHC4H4O6) in water can be written as: KHC4H4O6 (aq) ⇆ K+ (aq)  HC4H4O6- (aq) Determination of Ksp at 284 K The expression of its solubility product constant

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    Solubility Test Lab

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    Abstract The purpose of this lab was to identify the unknown and find out which solution is solubility. The test was done to determine the identity of the compound include solubility test, flame test, formation of precipitate and last PH test. It was found that the unknown compound smell like chorine, was soluble in water. The flame test matches the color of calcium chorine indicating that the unknown compound contained chorine, also the anion test sodium chorine proved to be positive. Resulting

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    A sample Calculation Calculation of the dissolved amount: Initial weight - Weight of substances left after the solution reached saturated state = Dissolved amount of substance Calculation for the average of three trials: (Data of 1st trial + Data of 2nd trial + Data of 3rd trial) / 3 = Average Appropriate Graph(s) For Electrical Conductivity Experiment: Raw Data Table (Credit: Cynthia, Emily, Haruka, Joshua, Keimin, Sean, Reorganized by me) Qualitative Observations No qualitative observation

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    HCl is a polar molecule therefore it wouldn’t be soluble in diethyl ether, a nonpolar solvent. Based on solubilities, HCl is an inorganic compound that would rather be in the aqueous layer, while the diethyl ether, an organic compound would rather be in the organic layer. The upper layer consists of the organic solvent and organic products, which are the ether

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    Reaction Lab

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    The solubility rules pertaining to the substances used during this lab are as follows: All nitrates, sulfates (except those containing Ba, Ca, Sr, Pb, and Hg₂), compounds containing alkali metals (Na), and chlorides (except those containing Ag, Pb, and Hg₂) are

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    suitable solvent being chosen and proper recrystallization technique being carried out. The solvent chosen had to have a different polarity than that of the molecule of interest. The technique used was dependent on the solubility of the solvent at higher temperature and the solubility of the impurities at all temperatures. To analyze the acetanilide product of the reaction, 1H NMR and IR were used. Results, Discussions, and Conclusions In this experiment, acetanilide was synthesized via

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    determined through the process of recrystallization. The use of solvent determines the recrystallization process, so the selection of an appropriate solvent is vital for this process since the solubility of the crystals in the hot solvent, is dependent on decreased solubility when the solution is cooling. The solubility test helps in the determination of an appropriate solvent for a specific solute based on whether or not the solute dissolves

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    1. INTRODUCTION 1.1. CYCLODEXTRIN1, 2, 3:- For drugs to be pharmacologically active, they essential have assured degree of water solubility, and also maximum of them should be lipophilic in instruction to be permeable to the biological membranes through passive diffusion. The water solubility of drug is characterized by its potency and its type of formulation. The hydrophilic property will prevent the dissolved drug molecule to separate from the hydrous exterior into a lipophilic bio membrane and

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    Isomers Lab Report Essay

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    the elements. Enantiomers, a type of isomer, are two compounds that are chemically similar, but are arranged as non-superimposable mirror images of each other. Enantiomers tend to have many similar chemical properties, such as melting point and solubility. In this experiment a pair of enantiomers, S-Carvone and R-Carvone

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    Crospovidone Analysis

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    disintegrant used at 2-5 % concentration in tablets prepared by direct compression or wet & dry granulation method. Description: White to creamy-white, finely divided, free- flowing, practically tasteless, odorless or nearly odorless, hygroscopic powder. Solubility: Practically insoluble in water and most organic solvents. Stability: Crospovidone is stable. Storage conditions: Since it is hygroscopic it should be stored in an airtight container in a cool, dry, place. Incompatibilities: When exposed to a high

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    Odourless Powder Essay

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    above results it is evident that OXB exhibits poor flow properties. 8.1.2 Determination of solubility The solubility data for OXB as observed in 0.1 N HCl, pH 4.5 Acetate buffer, pH 6.8 Phosphate buffer and Purified water is presented in Table 25. OXB exhibited a pH independent solubility phenomenon in all pH conditions and various aqueous buffers. Table 25: Solubility data of OXB BCS solubility (pH solubility) profile of OXB Sr. No Media mg / ml 1 0.1 N HCl 249.119 2 pH 4.5 Acetate buffer

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    Ninhydrin Lab Report

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    MSc FOOD BUSINESS MANAGEMENT AND TECHNOLOGY Food Formulation & Processing Laboratory Practical Submitted to, Submitted by, Janis Kelly Blesson Abraham Mathew

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    water soluble compounds, which cause difficulties in the development of solid dosage forms with good bioavailability(1). The therapeutic effect of the drug is reliant on the bioavailability which in turn relies on the solubility and dissolution rate of the drug, therefore; solubility is the most important factor to get the required concentration of drug in the systemic circulation for therapeutic response to be attained(2). For different poorly soluble medications, bioavailability is limit via the

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    Emtricitabine Case Study

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    4-amino-5-fluoro-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-1,2-dihydropyrimidin-2-one c) Molecular Formula: C8H10FN3O3S d) Molecular Weight: 247.248 g/mol e) Description: white to off-white crystalline solid f) Melting point: 136 °C to140 °C g) Solubility: Freely soluble in methanol and in water; practically insoluble in methylene chloride. h) pKa value: 2.65 i) Route of administration: Oral j) Excretion: Renal (86%) and fecal (14%) k) Metabolism: Hepatic oxidation and glucuronidation CYP system

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    Physical Means was the first method we used to separate parts of Sludge. Physical Means means that you are taking something out (most likely a insoluble solid which is what we did) either with a tool or with your hands. We had four insoluble solids in our mixture and we used our fingers to remove each of them Distillation After we got the insoluble solids out by using Physical Means, we then used distillation to get the soluble solid out of the mixture. Distillation is a separation technique used

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    Dissolution is the process that makes solutions. A solution is a homogenous mixture of two or more substances. The solute in the solution is the substance that is dissolved, while the solvent in the solution is the substance that dissolves the solute during dissolution. The question introduced in this lab is “What factors influence the rate at which one substances dissolves in another?” The three factors that affect the rate of dissolution are temperature, how much you stir the mixture, and the particle

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