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Unit 18 B Study Guide 1. Find the solubility (in mol/L) of lead(II) chloride (PbCl2) at 25oC. Ksp = 1.62e–5. A) 1.59e–2 B) 2.53e–2 C) 6.64e–17 D) 2.01e–3 E) 2.01e–2 2. The two salts AgX and AgY have very similar solubilities in water. It is known that the salt AgX is much more soluble in acid than is AgY. What can be said about the relative strengths of the acids HX and HY? A) Nothing. B) HY is stronger than HX. C) HX is stronger than HY. D) The acids have equal strengths. E)
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Determination of the Solubility of Calcium Hydroxide Apparatus * Solid calcium hydroxide * 0.4 mol/dm hydrochloric acid * Distilled water * Pipette * Triple valve rubber pipette filler * Conical flask * Beaker * White tile * Clamp and stand * Methyl orange indicator Producing the calcium hydroxide solution 1. Roughly fill a beaker with 200cm³ of distilled water. This does not need to be accurate because samples will be taken from this. 2. Add solid calcium
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usage in treating different diseases Lab 2: Identification and Organoleptic characterization of some Inorganic drugs Part 1: Identification of Inorganic drugs by physical appearance Part 2: Identification of Inorganic drugs by variability in solubility Lab 3: Qualitative analysis of Acid Radicals present in drugs and dosage form Part 1: Examples of Drugs and dosage forms having acid radicals Part 2: How to analyze bromide‚ chloride‚ nitrate‚ carbonate and sulfate radicals Lab 4: Qualitative
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* 1 To measure the molar solubility of a sparingly soluble salt in water. * 2 To prepare a calibration curve based on complex ion formation for absorbance enhancement. * 3 To calculate the solubility product constant (Ksp) of a sparingly soluble salt from its molar solubility. * 4 To confirm the common ion effect on the molar solubility of a sparingly soluble salt. Introduction In previous introductory chemistry courses‚ you learned some basic solubility rules that are useful in
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Ocean County College Department of Chemistry Stoichiometry of a Precipitation Reaction Submitted by Hendy Zelishovsky Date Submitted: 4/26/2012 Date Performed: 4/25/2012 Lab Section: Chem-180-DL1 Course Instructor: Dr. Cynthia Spencer Purpose
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Extraction and Sublimation of Caffeine from Tea Leaves By: Ashley Barnes CH 236 – P8 Experiment 4 & 4.5 Due: 10/15/2014 Table 1. Table of Reagents Discussion The extraction yield refers to the percent of caffeine in the tea leaves at start of the extraction experiment. Tea leaves had 0.55 grams of mass per eight ounce serving. The weight of the extracted crude caffeine was 0.264 grams. Therefore‚ the extraction yield was 48%. This means that we pulled out almost half of the caffeine
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CHEM 2204 Chromatography Lab by wyk.wong » Fri Jul 11‚ 2014 10:25 am Results and Calculations Rf values Rf=(Distance moved by the spot (cm))/(Distance moved by the solvent front (cm)) Toluene: Rf=2 cm/3.8 cm=0.53 (Fluorenone) Rf=1.1 cm/3.8 cm=0.29 (Fluorene) Hexane: Rf=1.8 cm/2.2 cm=0.82 (Fluorene) Rf=0 cm/2.2 cm=0 (Fluorene Table 1: Experimental IR peaks compared to literature IR peaks for fluorenone Functional group Experimental peak (cm-1) Literature peak (cm-1) C-H 3010.5 3013
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Apeejay School Kolkata (WEST BENGAL) DEPARTMENT OF CHEMISTRY This is to satisfy that Ritika Kataruka bearing Roll no _______ Studyng in class XII (Science) of this institution has successfully completed the Chemistry Project. “To Study the quantity of casein present in different samples of Milk” Based on the syllabus of C.B.S.E. council for the session 2013-2014 AISSCE under my guidance and supervision and has given satisfactory account
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Χηεμιστρψ Ινϖεστιγατορψ Προϕεχτ To prepare of Rayon Thread from Filter Paper Name : MOHAMMAD ARSHAD SHEIKH Class : XII ‘B’ Roll No. : School Name: KENDRIYA VIDYALAYA‚ BIBROD‚ RATLAM (M.P.) Λαβορατορψ Χερτιφιχατε This is to certify that_____________________________ has satisfactorily completed the course of chemistry
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