(quicklime) in a strongly exothermic reaction: CaO(s) + H2O(l) → Ca(OH)2(s) Calcium hydroxide‚ Ca(OH)2‚ is an ionic solid that is only slightly soluble in water. Solid Calcium Hydroxide: A calcium hydroxide solution is also referred to as limewater. A saturated solution of calcium hydroxide has the solid in equilibrium with its ions as shown below: Ca(OH)2(s) ↔ Ca2+(aq) + 2OH-(aq) Recall that a saturated solution is a solution
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Determining the Ksp of Calcium Hydroxide by Titration of Saturated Ca(OH)2(aq) with HCl(aq) Abstract: Titration is a technique that has been used in this experiment to identify the Ksp value of calcium hydroxide in order to determine the extent to which the compound is soluble in water. A known volume of 50 mL of hydrochloric acid‚ a concentration of 0.05 M hydrochloric acid‚ a volume of 50 mL calcium hydroxide base‚ an unknown concentration
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Solubility Product of Ca(OH)2 Aim: To find the solubility and the solubility product of calcium hydroxide. Theory: Define‚ with equation‚ the solubility product. Find‚ from literature‚ the solubility product of calcium hydroxide at 25oC. Experimental: Reagents: solid calcium hydroxide‚ water‚ 0.1 moldm-3 hydrochloric acid Apparatus: Procedure: 1. An empty bottle was weighed. Then the empty bottle was weigh with 1g calcium hydroxide. 2. 100 cm3 of distilled water
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CA Assignment 2 1. a) All arrays are read simultaneously. A cache read is a hit. LRU: Cache power usage= (4*5) + 20 +1 = 41 units. FIFO: Cache power usage= (4*5) + 20 = 40 units. Random Replacement Policy: Replacement array is not accessed. Cache power usage= (4*5) + 20= 40units. b)
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THE Ksp of Magnesium Oxalate ABSTRACT INTRODUCTION In this experiment the solubility product constant of the salt magnesium oxalate (MgC2O4)will be determined. The system of interest exists as a solid in equilibrium: Precipitation reaction of EXPERIMENTAL METHODS Preparation of the 0.15M Potassium Permanganate (KMnO4) solution {text:list-item} B. Prepare precipitation mixtures 1. Obtain three labeled 20-mL vials from the cart. 2. Burets are set up in the lab with 0.250 M
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Weeks Outline | 1st Grading Period - Reading Focus: Literary Extended Text The Crucible by Arthur MillerShort Texts Literary: 1. Sioux Native American Creation Story http://chnm.gmu.edu/exploring/pre_18thcentury/creationstories/pop_sioux.html 2. “Legend of the Cherokee Creation” from the Cherokee Native American Tribe http://www.cherokee-nc.com/index.php?page=97 3. “Diné” from the Navajo Native American Tribe http://www.artsmia.org/world-myths/artbyculture/ketoh_story.html 4. “When Grizzlies
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RSM490 – International Business Eli Lilly and Company Case Analysis Yiseul Oh (9999090000$) Executive Summary Strategic alliances are defined are forms of contract-based cooperation between from different countries and has became one of the most important and wide-spread phenomena in the business world during the 1980s (Das‚ 2000). Successful alliances have proven to bring many beneficial outcomes to both parties‚ through its ability to enable organizations with distinctive competitive advantages
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Equilibria: Solubility Product Constants and Complex Ion Equilibria → Ag + + 2 NH Ag(NH3 ) +2 ← 3 [Ag ][NH ] = [Ag(NH ) ] 2 + Kd 3 + 3 2 → Cu 2+ + 4 NH Cu(NH 3 ) 24+ ← 3 [Cu ][NH ] = [Cu(NH ) ] 4 2+ Kd Complex Ion Equilibria 3 2+ 3 4 3 Complex Ion Equilibria • A metal ion coordinated to several neutral molecules or anions forms compounds called complex ions. • Familiar examples of complex ions include: • • Ag(NH3 )+2 Cu(NH3 )+4 Complex ion equilibrium constants are called dissociation constants
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BSBOHS501B – PARTICIPATE IN THE CO-ORDINATION AND MAINTANANCE OF A SYSTEMATIC APPROACH TO MANAGING OHS General 1. Find attached as preceding paragraphs an assignment relating to BSBOHS501B – Participation in the Co Ordination and Maintenance of a systematic approach to OHS. 2. The report is based on Action Plans‚ Assumptions; and Points from a previous place of employment. My role in the company was the Warehouse Manager and Safety Officer. Organisation‚ Structure‚ Operations
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CAS GUIDE 2013/2014 CAS coordinator contact: Jakub Lorenc Mail: kubalorenc@gmail.com “think globally‚ act locally” Contents: Introduction.................................................................................... p. 4 What does CAS mean?................................................................. p. 4 Aims of CAS. ............................
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