Acid-Base Calculations The Ion-Product Constant for Water‚ Kw Water undergoes ionization to a small extent: H20(l) H+(aq) + OH–(aq) The equilibrium constant for the reaction is the ion-product constant for water Kw: (1) This is a key equation in acid-base chemistry. Note that the product of [H+] and [OH–] is a constant at a given temperature (Eq(1) value is for 25oC). Thus as the hydrogen ion concentration of a solution increases‚ the hydroxide ion concentration decreases
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Experiment #7: Acids‚ Bases and Salts Mabag‚ Viannery D.‚ Mangune‚ Paolo D. Chem 14.1‚ MAB1‚ Ms. Angelyn del Rosario March 8‚ 2010 I. Abstract The experiment allowed students to explore different electrolytes and classify them into acids‚ bases and salts by using different indicators or by measuring the pH levels of each. The experiment also helped students classify different substances through their conductivity properties. The preparation of a 1 M stock solution from NaOH pellets diluted to a
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Kuta Software - Infinite Algebra 2 Name___________________________________ The Change of Base Formula Date________________ Period____ Use a calculator to approximate each to the nearest thousandth. 1) log 3 3.3 2) log 2 30 3) log 4 5 4) log 2 2.1 5) log 3.55 6) log 6 13 7) log 6 40 8) log 4 3.5 9) log 2 2.9 10) log 6 22 11) log 7 8.7 12) log 3 62 ©k z2D041s25 AKmuHtiaX bSFoQfftnwWaQrser gLiLrC0.P i ZAflZln 9rziCg9hWtIsP 0rjeVsre3ryvfeidm.N t qMXaTdpe1 5wwietMh1 SILnDfEi5n6istleP nAslHgvePbmrsau
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The purpose of this experiment is to separate a solution of an acidic and organic compound and purify its respective acidic product through the techniques of an acid base extraction‚ recrystallization‚ and use of Melt Temp (melting point range). The reaction of an unknown acid (3-chlorobenzoic acid) with diethyl and sodium hydroxide was observed‚ and the solution naturally separated into an aqueous and organic solution. The mixture of acid and organic solution was created and then separated through
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Five major theoretical bases for counseling in psychology are biological‚ learning‚ cognitive‚ psychodynamic‚ and sociocultural. Each one of these perspectives searches for answers about behavior through different techniques and researching a clients childhood or adult life experiences looking for answers to different kinds of questions. Due to the different types and styles of counseling approaches‚ each counselor forms their own thoughts and explanations. The premise behind the biological perspective
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the History of Money or basically how money evolved. I know none of you like history‚ but I will make an attempt at making it as interesting for you as I can. The evolution of money commenced years and years and years…. And years ago! So here comes the definition. Intro: Money is any object or record that is generally accepted as payment for goods and services and repayment of debts in a given socio-economic context or country. But‚ how did money come about? The history of money begins around 2500
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Extraction of R’-NH2 For both of the organic acid and organic base extraction‚ the addition of the respective inorganic acid or inorganic base (HCl or NaOH) to the three-component mixture caused an immiscible appearance of the solution in the separatory funnel. By briskly shaking the separatory funnel with the mixed components created a build up of pressure which was released through the stopcock forming small disappearing bubbles within the tip of the separatory funnel. Once the funnel was placed
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Classical Approach of Macroeconomics After reading this chapter‚ you will be conversant with: • The Classical Aggregate Supply Model • The Keynesian Aggregate Supply Model • The Classical Analysis of Income Determination INTRODUCTION EARLIER WE HAVE SEEN THE ROLE OF AGGREGATE DEMAND IN DETERMINING OUTPUT AND EMPLOYMENT AT A GIVEN PRICE LEVEL. WE HAVE SIMPLY KEPT ASIDE SUPPLY SIDE AND ITS ROLE IN THE DETERMINATION OF OUTPUT AND EMPLOYMENT
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18.1.4 – 18.1.6 CALCULATIONS INVOLVING ACIDS AND BASES Review of Important formulas pH = ‐ log10[H+] [H+] = 10‐pH pKa = ‐ log10 Ka Ka = 10‐pKa pOH = ‐ log10[OH‐] [OH‐] = 10‐pOH pKb = ‐ log10 Kb Kb = 10‐pKb The ionic product of water = Kw = [H+] x [OH‐] = 1.0 x 10‐14 mol2 dm‐6 at 298 K The expression varies with temperature
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monetary and fiscal policy‚ thus overcome the complexity and reach the desired‚ stable condition that currently is vaguely at sight. In order to clarify the outcome of policy changes‚ this work will demonstrate‚ more precisely depict the increase in money supply and government spending through the combination of IS/LM/BP modeling‚ followed by Phillips curve as well (Lui‚ 2011). Main Body IS/LM Modeling The model is depicted in figure 1. Vertical axis represents interest rate (i)‚ whereas horizontal
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