Melissa Benning Introduction The purpose of the coordination complex lab is to determine the absorbance spectra of complexes based on their color. Every complex has its own color which results from the wavelengths of white light it reflects. The complexes will be compared by the color each reflects and by the energy of the waves each absorbs. The purity of the synthesized complex will also be found. Procedure Part I: Preparation of the Complex A sample of copper sulfate pentahydrate (6.285g)
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RESULT: SampleReading | 4A | 4B | 4C | AVERAGE | Weight of crucible (g) | 53.8242 | 60.9377 | 56.7898 | 57.1869 | Weight of crucible+ sample (g) | 56.0800 | 63.0159 | 59.3516 | 59.4825 | Weight of sample (g) | 2.2558 | 2.0782 | 2.5527 | 2.2956 | Weight of crucible + sample after 1 day (g) | 53.8813 | 60.9910 | 56.8657 | 57.2460 | Weight of ash (g) | 2.1987 | 2.0249 | 2.4859 | 2.2365 | Percentage of ash (%) | 2.5313 | 2.5647 | 2.6168 | 2.5709 | CALCULATION: % of ash = weight of sample
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Delimitation of the Study The scope of this study is based on the formulation and application of both chili and kamias extracts to mosquitoes. 6. Definition of Terms Antiscorbutic: a remedy for scurvy Astringent: substance is a chemical compound that tends to shrink or constrict body tissues‚ usually locally after topical medicinal application astringent‚ Pesticide: any chemical substance used for killing pests‚ as insects Stomachic: is one that
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is the key economic principle involved in calculating the present value and future value of multiple cash flows? Regardless of whether you are calculating the present value or the future value of a cash flow stream‚ the key idea is to discount or compound the cash flows to the same point in time. 6.3 What is the difference between a perpetuity and an annuity? A cash flow stream that consists of the same amount being received or paid on a periodic basis is called an annuity. If the same payments
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Environment ’s effect on Growth of Bread Molds I. INTRODUCTION A. BACKGROUND OF THE STUDY Molds are species of fungi. There are many different kinds of molds‚ some of which are specially adapted to grow in particular environments or on particular surfaces. Unlike plants‚ molds cannot produce their own food‚ so they need an external source of energy and nutrients. Molds (and mildew) are fungi. Fungi are neither plant nor animal but‚ since 1969‚ have their own kingdom. The fungi kingdom
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A mixture can be defined as a physical combination of two or more pure substances. Separation techniques are used to separate components that are not chemically combined. All of these techniques involve changes in the physical state of a chemical compound rather than chemical changes. Sea sand‚ table salt‚ and two other unknown substances will be separated using the separation techniques in order to demonstrate the properties of mixtures and their ability to be separated by physical means. If we use
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Chapter 5 Which of the following is the actual rate of interest paid or earned over a year’s time? Wrong Answer: the periodic rate Which of the following has the highest time value of money at the same time interest rate for the same number of payments Correct Answer: the future value or an annuity-due Which of the following would increase the present value of a single cash flow? Wrong Answer: a decrease in the cash flow You invest $1000 at 6% compounded annually and want to know
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St.‚ Intramuros‚ Manila Melting Point and Boiling Point of Organic Compounds Group No. 5 Manacup‚ Cris Vincent L. Oblena‚ Adrian D. Ong‚ Joshua Jyro B.* *Leader ABSTRACT In compounds‚ two of the physical properties affected by the varying structures are melting point and boiling point. Through the use of the Thomas-Hoover Melting Point Apparatus or the micro method‚ the melting and boiling point of organic compounds are now determined. The aim of this experiment is to know the factors
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FIN 101 Exam 1 Chapter 1 Commerce Bank Credit What does your credit card really cost you? APR- Annual Percentage Rate Prime 3.25% Amount: $51‚649 Rate: 4% Years: 4 = $60‚422.02 Time Value of Money- TVM Future Value FV=PV*(1+i)^n FV= future value PV= present value i= interest rate n= time The Rule of 72 If at 10%‚ it will take 7.2 to double (just divide 72 by 10) 72 DIVIDED BY ANY NUMBER is how long it will take to double Present value PV=FV/(1+i)^n
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How do ionic compounds form? How do electrons change the shape of a molecule? These are just a couple of the questions that this paper will answer. How do ionic compounds form? Ionic compounds are formed by positive and negative ions. An ionic bond means that there are valence electrons being shared between the two molecules. This can cause the molecule to become negative or positively charged. An ionic compound is formed by the complete transfer of electrons from a metal to a nonmetal and the
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