Aim To Find the Number of Moles of Water of Crystallisation in Copper (II) Sulphate salt. Introduction Water of crystallisation is the term given to the molecules of water that are used to build up a crystal lattice in some ionic compounds.In copper II sulphate the blue crystals would be impossible without using water molecules to act as ’scaffolding’ within the structure CuSO4.5H2O. When this is heated the water molecules are driven off and the blue crystals become a white powder. As most
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I. Grade Level/Unit Number: 9-12 Unit 7 II: Unit Title: Mole Concept III. Unit Length: 7 days (on a 90 min. per day block schedule) IV. Major Learning Outcomes: Students should be able to: Mole Concept • Calculate formula mass. • Convert representative particles to moles and moles to representative particles. (Representative particles are atoms‚ molecules‚ formula units‚ and ions.) • Convert mass of atoms‚ molecules‚ and compounds to moles and moles of atoms
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Sains Malaysiana 41(4)(2012): 445-452 Effects of Spin Contamination on the Stability and Spin Density of Wavefunction of Graphene: Comparison between First Principle and Density Functional Methods (Kesan Pemumusan Spin Terhadap Kestabilan dan Ketumpatan Spin bagi Fungsi Gelombang Grafen pelumusan: Perbandingan antara Kaedah Prinsip Pertama dan Kaedah Kefungsian Ketumpatan) LEE SIN ANG*‚ SHUKRI SULAIMAN & MOHAMED ISMAIL MOHAMED-IBRAHIM ABSTRACT The effects of spin contamination on the
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Aim: To compare the reactivity of various metals by observing their reaction with hydrochloric acid. Materials: 2 M hydrochloric acid Detergent Test tubes and test tube rack 0.5 pieces of magnesium‚ aluminium‚ iron‚ zinc and cooper Sand paper Ruler Timer Bench mat Method: 1. The surface of the magnesium was cleaned with a piece of sandpaper 2. The Magnesium was placed into a test tube 3. Three Drops of detergent were added to the test tube 4. 2cm of hydrochloric acid was added
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Introduction to Bond Market A financial market place where debt instruments‚ primarily bonds‚ are bought and sold is called a bond market. The dealings in a bond market are limited to a small group of participants. Contrary to stock or commodities trading‚ the bond market (also known as the debt market) lacks a central exchange. The bond market (also known as the credit‚ or fixed income market) is a financial market where participants can issue new debt‚ known as the primary market‚ or buy and
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CHAPTER 4 BONDS ANND THEIR VALUATION Bond value--semiannual payment 1. You intend to purchase a 10-year‚ $1‚000 face value bond that pays interest of $60 every 6 months. If your nominal annual required rate of return is 10 percent with semiannual compounding‚ how much should you be willing to pay for this bond? N = 20 I/Y = 5 PV = -1124.62 PMT = 60 FV = 1000 Bond value--semiannual payment 2. Assume that you wish to purchase a 20-year bond that has a maturity value of $1‚000 and makes semiannual
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The characteristic of a convertible bond The convertible bond is one kind of equity-linked bonds. The term of the bond entitles bondholder to convert bonds into shares of the company or another company in the same group‚ at an agreed-upon conversion price‚ among a fixed period. The reason why it is made in this form is that the issuer can benefit from four aspects as follow‚ (1) better terms. A convertible bond have a lower interest rate‚ less restrictive covenants or the subordination of bondholders’
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does changing the temperature (°C) of glycerin affect the viscosity s -1 of glycerin (l)‚ when tested by dropping a marble from a constant height into the glycerin (l) and timed with a stopwatch until the marble hits the bottom? Design Independent Variable: The independent variable of this experiment is the temperature (°C) of the glycerin (l). Dependent Variable: The dependent variable of this experiment is the viscosity s -1 of the glycerin (l). Controlled Variable(s): The controlled variable(s)
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countries during a specified period of time. BOP compares the dollar difference of the amount of exports and imports‚ including all financial exports and imports. A negative balance of payments means that more money is flowing out of the country than coming in Read more: http://www.investopedia.com/terms/b/bop.asp#ixzz2KhMuRIuZ Balance of payments (BoP) accounts are an accounting record of all monetary transactions between a country and the rest of the world.[1] These transactions include payments for
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INORGANIC CHEMISTRY – CLASS XI (ISC) Properties of Group 1 elements [Alkali metals] 1. Due to high reactivity‚ alkali metals do not occur free in nature. Elements of group 1 (or IA) are known as alkali metals because their hydroxides are soluble in water and form strongly alkaline solutions. Alkali metals are stored under kerosene oil because they get tarnished on exposure to air. 2. The general electron configuration of alkali metals is ns1. 3. Alkali metals have largest size and lowest
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