LABORATORY REPORT 4 PREPARATION OF ALUM FROM ALUMINUM METAL Huy Nguyen October 2nd‚ 2012 The objective of the laboratory is to synthesize alum (KAl(SO4)2.xH2O) from aluminum powder and to determine the proportion of water in the alum crystals. Alum is a product from the reaction between potassium hydroxide and sulfuric acid. The reaction include several steps‚ as followed: Aluminum powder reacts with potassium hydroxide to generate Al(OH)4- ions and release hydrogen. 2 Al(s) + 2 KOH(aq)
Premium Chemistry Aluminium Water
“The Synthesis of Zinc Chloride”‚ what a peculiar name for a lab that does not even involve synthesis. Synthesis‚ by definition‚ is when two elements are combined in a chemical reaction‚but that is not the case. In this lab we are combining zinc‚ an element‚ and hydrochloric acid‚ a compound‚ but combining a compound and an element is not synthesis‚ it is single replacement. We are taking zinc and hydrochloric acid and making zinc chloride and hydrogen‚ a single replacement‚ but what occurred during
Premium Hydrogen Chemical reaction Hydrochloric acid
com/locate/engstruct Applications of shape memory alloys in civil structures G. Song a‚∗ ‚ N. Ma a ‚ H.-N. Li b a Department of Mechanical Engineering‚ University of Houston‚ Houston‚ TX 77204‚ USA b School of Civil and Hydraulic Engineering‚ Dalian University of Technology‚ Dalian‚ 116024‚ China Received 24 June 2004; received in revised form 19 December 2005; accepted 26 December 2005 Available online 17 April 2006 Abstract Shape memory alloy (SMA) is a novel functional material and has found
Premium Martensite
costs whose amount varies pertaining to production quantity. The lists of marginal cost are as follows. ◎ The lists of marginal cost Item | Description | TotalElectricity Cost | in the case of new plant of Alusaf‚ it amount of 16% of per ton aluminum price for every ton of produced aluminumthus electricity is bundled with production | Total Alumina Cost | alumina is the raw material of smelter‚ naturally variable cost | Other Raw Materials | the amount of coke& pitch‚ bath materials used
Premium Marginal cost Supply and demand Cost
Recycling Aluminum Chemically Question: How does theoretical yield of Aluminum compare with the percent yield? Data: Mass of aluminum foil 1.033g Mass of filter paper 0.472g Mass of Al crystals‚ filter paper‚ weight boat 20.823g Mass of weigh boat 2.064g Mass of Al crystals 18.287g Claim: Based on my calculations‚ the theoretical yield of Aluminum was 18.160g‚ and the actual yield was 18.287g. This gives a percent yield of 100.699%. Evidence/ Reasoning: By looking at the overall
Premium Aluminium Alum Chemistry
In today’s world‚ you can choose from steel and aluminum truck beds. While steel was the most popular option in the past‚ aluminum is becoming increasingly popular. So why are people switching to aluminum truck beds? Here are BLANK good reasons: 1. Aluminum Is Lighter As you might expect‚ aluminum is much lighter than steel. While weight isn’t usually a huge factor when it comes to shopping for truck beds‚ a lighter bed does offer some benefits. Perhaps the biggest benefit of a lighter truck bed
Premium Automobile Internal combustion engine Fossil fuel
EFFECT OF TEMPERATURE ON CORROSION OF CERMETS ALLOY ABSTRACT Tungsten carbides (WC) are widely used as wear resistant components such as seal‚ valves‚ rings‚ nozzle and bearings. But in some processing operations‚ the environment necessarily includes severe corrosion or extremes of temperatures. In this research‚ commercially cobalt tungsten carbide (WC-6%Co) and nickel tungsten carbide (WC-9%Ni) was examined in seawater (3.5% salinity) to know the effect of temperature on corrosion for both
Premium Corrosion
Finding the formula of Hydrated Zinc Sulphate Results Table of masses and probabilities | Mass (g) | Uncertainty (g) | Test tube | 46.94 | ±0.01 | Test tube and hydrated sample | 59.94 | ±0.01 | Hydrated sample | 13.00 | ±0.02 | Test tube and anhydrous salt | 54.15 | ±0.01 | Anhydrous sample | 7.21 | ±0.02 | Mass of water | 5.79 | ±0.04 | Calculations to find the Formula of Hydrated Zinc Sulphate * Mr of Zinc Sulphate ZnSO4 = 65 + 32 + (16 x 4) =161
Premium Sulfuric acid Measurement Zinc
Zinc Tris-thiourea Sulfate (ZTS) is a Semi Organic Nonlinear Optical (NLO) material which finds applications in the area of laser technology‚ optical communication‚ data storage technology‚ and optical computing etc. The author has successfully grown ZTS crystal by gel method. Gel technique has been adopted at ambient temperature to attain better result. The grown crystals were transparent and colourless. The crystal size has been obtained the range about 5mm X 3mm X 2mm. Thermal study of ZTS crystal
Premium Temperature Entropy Thermodynamics
DETERMINATION OF THE THICKNESS OF ZINC ON A PIECE OF GALVANIZED METAL Department of Biology‚ College of Science‚ University of the Philippines Baguio ABSTRACT The experiment was performed to be able to determine the thickness of zinc on a piece of galvanized metal. It also aimed for the students to be introduced to the reactivates of metals with acids as well as for them to develop some feeling for the size of an atom. In determining the thickness of the zinc coating on the metal‚ students
Premium Zinc