designer‚ and Charles Le Brun‚ the interior artist. He was going to start work on a much grander chateau. Louis XIV was determined to show a symbol to embody majesty and power of the French monarchy. But after Louis Vau’s death‚ Jules Hardouin Mansart (1646-1708) was commissioned to triple the size of the palace. It took thirty two years to complete the building of Versailles and the cost to build it was about one hundred million dollars. No one knows the exact cost of it because many people believe
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Born on July 1‚ 1646 Gottfried Wilhelm Leibniz started his journey of contributions to mathematics and philosophy in Leipzig‚ Germany. Born shortly after the Thirty Year’s War‚ which left Germany in ruins‚ he was born into a pious Lutheran family. Before he was six years of age‚ Gottfried lost his father‚ Friedrich Leibniz‚ a professor of Moral Philosophy at the University of Leipzig‚ and he was sent to an insufficient school. However‚ due to his father’s extensive library‚ he was able to educate
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metal ions from aqueous solutions. The biosorption studies were conducted in batch adsorption system as a function of contact time and initial metal ion concentration. The adsorption system attained equilibrium after 150 min of contact time for Pb (II)‚ Cu (II)‚ Zn (II) and Cd (II). The removal efficiency of red alga improved as metal ions concentrations were lowered. The equilibrium sorption data was better explained by Langmuir isotherm model suggesting that the adsorption of metal cations observed
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dissolve. In this experiment a simulated water sample from Clark Fork‚ or portion of the Columbia River in Montana‚ will be analyzed to determine the presence and levels of IA and IIA metal ions as well as the concentrations of Cu 2+ and Fe 3+ ions (Na+‚ K+‚ Ca++‚ Ba++‚ Sr++‚ Cu++‚ and Fe+++). We will be using the techniques
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forms a basic oxide with the formula XO and a hydride with the formula XH2. The hydride reacts with water to give hydrogen gas. The element X could be? A. K B. Ca C. N D. O 4. Which metal reacts with concentrated NaOH to produce hydrogen gas? A. Al B. Cu C. Fe D. MG 5. In which pair does the named element have the same oxidation number? A. Sulfur in H2S2O7 and H2SO4 B. Mercury in Hg2+ and Hg22+ C. Oxygen in Na2O2 and H2O D. Cobalt in Co(NH3)62+ and Co(NO3)2
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Executive Summary There were multiple issues weighing heavily on the mind Wally‚ a VP at Sports Obermeyer‚ in November of 1992. Sports Obermeyer‚ a successful manufacturer of ski apparel was having trouble planning the manufacturing levels of its various skiwear items for 1993-94 based on whatever scant information it had on the end customers’ likes and dislikes. Waiting to make these decisions till after the Las Vegas trade show‚ the one event which would give reliable retailer feedback‚ would
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Name: Serene Tan Subject: Chemistry SL Date: 5th December 2012 Title: The effect of concentration of electrolyte on the potential difference in voltaic cell. Aim: To investigate the effect of concentration of electrolyte of the potential difference in voltaic cell. Introduction: Chemical reactions involving the transfer of electrons from one reactant to another are called oxidation-reduction reactions or redox reactions. In a redox reaction‚ two half-reactions occur; one reactant gives
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ColdH2O | HotH2O | LitmusTest | DiluteHCl | DiluteNaOH | Mg | Silver | Odorless | Slight change of color and expansion | No Reaction | Substance became buoyant‚ gas produced | No Reaction | Gas and heat produced‚ substance dissolved | No Reaction | Cu | Copper | Odorless | Added Sheen | No Reaction | No Reaction | No Reaction | No Reaction | No Reaction | Zn | Metallic Silver | Odorless | No Reaction | No Reaction | No Reaction | No Reaction | Substance dulled‚ gas produced | No Reaction | MgO
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at 210.5 inches overall (216.5 inches‚ wagon) on a 118.0-inch wheelbase‚ it’s smaller than the Polara and Matador‚ but larger than the new‚ compact Lancer (188.8 inches on a 106.5-inch wheelbase). Engine options are 318 and 361-cu-in V-8s and the famed 30-degree‚ 225-cu-in slant six.1962: Dodge and Plymouth downsize their full-size lines. Chrysler blames Virgil Exner for the way these cars turned out‚ and uses it as an excuse to fire its design chief. The ’62 Dart is 202.0 inches long on a 116.0-inch
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Lab: STOICHIOMETRY The reaction of Iron with Copper(II) Sulfate Purpose: In this experiment we will use stoichiometric principles to deduce the appropriate equation for the reaction between metallic iron and a solution of copper (II) sulfate. This reaction produces metallic copper‚ which is seen precipitating as a finely divided red power. Materials: Flask beaker Copper solution Balance Hot plate •150 ml beaker •1 gram of iron power
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