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    asdf

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    Solutions manual: Chapter 1 Getting started © Pearson Education Australia (a division of Pearson Australia Group Pty Ltd) 2006. This page from the Chemistry Dimensions 1‚ Teacher’s Resource may be reproduced for classroom use. QUESTIONS 1 Research 2 Property Solid Liquid Gas Volume Fixed Fixed Variable Shape Fixed Variable Variable Forces between particles Yes Yes No Movement of particles Vibration and rotation Vibration‚ rotation and translation Random and chaotic

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    Complexometric Determination of Water Hardness By Nick Williams CHM 152 Lab dates: Aug 28th 2013 Dr. Weide Abstract: When a polyatomic ligand with multiple lone pairs of electrons available for bonding to a central metal ion forms a complex with a metal ion‚ a process known as chelation takes place. Metal ion impurities can be found by using disodium salt of EDTA to determine the concentration of M2+ by complexometric or chelometric titration. Erichrome Black T makes it easy to see

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    Drilling Lab

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    TITLE: Water Based Drilling Fluid Analysis EXECUTIVE SUMMARY: Analysis of drilling fluids is essential to their performance. In this laboratory exercise the aim is to test three drilling fluid samples for; density and rheological properties‚ Fluid loss‚ chemical analysis i.e. testing pH‚ alkalinity‚ testing for chloride ions‚ calcium carbonate‚ calcium‚ bentonite; also determining the amount of solids present in the samples as well as volumes of oil‚ water and solids contained in the sample‚ and

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    Water Hardness

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    solution. To prepare this solution‚ weigh about 0.7-0.8 g of Na2EDTA and dissolve in 500 mL deionized water in your plastic bottle. Make to to shake the bottle to dissolve the salt. 2. Obtain a 250-mL Erlenmeyer flask and transfer a 10 mL of CaCO3 using a buret into the flask. 3. Measure 30 mL of deionized water and add it into the titration flask. 4. Make sure to stir the solution 5. Inside a fume hood‚ add 3mL of ammonia/ammonium chloride buffer (pH10) into the flask and stir

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    My Favorite Person

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    http://foricseandbeyond.blogspot.in/ DE’S FOUNDATION BISTUPUR‚ JSR ACTION OF HEAT ON CHEMICAL COMPOUNDS “Analytical chemistry -I” http://foricseandbeyond.blogspot.in/ metal oxide “Oxides of metals are generally stable to heat and they are considered to be most stable form of compound found in nature.” Oxides of potassium‚sodium‚calcium‚magnesium‚ aluminum ‚ zinc‚iron‚lead and copper are stable to heat uO C PbO Zn O http://foricseandbeyond.blogspot.in/ MERCURIC OXIDE

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    complex. The metal ions especially with a +2 charge or higher are the reason for water hardness to form on various objects known as “scum”. Calcium ions are typically the most common contributing factor for water hardness so this experiment uses CaCO3 (Calcium Carbonate) to analyze the hardness of an unknown sample. A scale of water hardness identifies “soft” water with a value less than 60 ppm (parts per million) and “hard” water with a value more than 200 ppm. 3 mL of ammonia/ammonium chloride

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    2014 10 Lyp Science 19

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    Summative Assessement-1 Examination 2014 Science Class – X Time allowed: 3 hours Maximum Marks: 90 General Instructions: a) b) c) d) e) f) g) h) 1. 2. 3. 4. 5. 6. 7. The question paper comprises of two sections‚ A and B. you are to attempt both the sections. All questions are compulsory. Questions 1 to 3 are one mark question of section A. Questions 4 to 6 carry two marks each of section A. Questions 7 to 18 carry three marks each of section A. Questions 19 to 24 carry five marks each of section

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    carbonate solution to precipitate the carbonate ions as CaCO3 (calcium carbonate). The precipitate is then filtered‚ dried‚ and weighed again. Data: Equation 1: M2CO3 (s) 2M+ (aq) + CO32- (aq) Equation 2: Ca2+ (aq) + CO32- (aq) CaCO3 (s) Equation 3: CaCl2 (aq) + M2CO3 (aq) CaCO3 (s) + 2MCl (aq) Mass of Crucible | 25.721 g | Mass of M2CO3 | 2.031 g | Mass of Filter Paper | 0.969 g | Mass of CaCO3 | 1.5782 g | Moles of CaCO3 | 0.01577 moles | Molar Mass of M2CO3 | 128.79 g/mol

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    Mummification Report

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    Report Introduction Mummification is an ancient Egyptian method which is a natural or deliberate process intended to dehydrate the body to preserve it. They done this because they believed that if a body was left to rot then it would destroy their soul‚ so they believed that the body needed to be intact to serve as host for the soul. So they preserved bodies so they could use them in the afterlife‚ where the Egyptians believed they would make a journey to another life. To start to mummify a body

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    EDTA (aq) + MIn- (aq) + 2H+ (aq) → H2In- (aq) + MEDTA (aq) Procedure/Data 0.8652 g of 0.004 M disodium EDTA was dissolved in 500 mL of deionized water within a sealed plastic bottle. Na2EDTA solution was standardized using 10 mL of CaCO3‚ 30 mL of DI water‚ five drops of Eriochrome Black T indicator‚ and 3 mL of NH3/NH4Cl (aq) buffer. Na2EDTA was titrated until the Eriochrome Black T solution

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