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‚ we were trying to see whether copper‚ after a chain of chemical reactions‚ will revert back to its elemental form. Procedure: First‚ I added nitric acid with copper in a beaker‚ which turned into a copper nitrate‚ a blue-green solution. Afterwards‚ I added sodium hydroxide‚ and my solution colored to a dark blue solution called copper hydroxide. I heated the solution to evaporate the water and I got a brownish-blackish solid called copper oxide. Once the solid appeared‚ I poured
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Calorie Calculation Exercises 1. A serving of two cookies has 150 kcal and 12 grams of fat. What percentage of total calories is fat? 1) Divide fat calories by the total kilocalories 2) Fat = 9kcal/g 3) 12g x 9kcal/g = 108kcal/g 4) 108kcal / 150kcal = .72 5) .72 x 100 = 72% total calories from fat 2. How many grams of protein are in a 2400kcal diet with 15% of total kcal from protein? 1) Grams / total kcal = total percentage of kcal from protein 2) Protein
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BORED PILE ANALYSIS Site ID : Tower Owner: PT. INDOSAT‚ Tbk Site Location: Cipayung (Mandor Hasan)‚ Cipayung Tower Type : SST 42M FOUR LEG GF (LIGHT DUTY) bp = 0.55 A. DIMENSION DATA Fx Fy ht = ℓp = 0.55 0.5 htb = htbe = h= 1.1 0.4 btb = 0.15 0.2 hw = hfp = 0.4 10 Lp = 10.9 Data Input Dimensi hal.1 B. CONCRETE DATA Compressive Strength for Pilecap Compressive Strength of Pile Concrete Density Weight of each Pile Allowable Tension Force of Pile Capacity Depth of Water
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c) two d) four D 4. Potassium bromide is an example of a(n) __ compound. a) molecular b) organic c) polyatomic B d) ionic 5. The only common polyatomic ion that has a positive charge is the __ ion. a) phosphate b) ammonium c) sulfate d) nitrate Chemistry 11 Exam Review – Answers - Page 1 A B D 6. In the formula H2SO4‚ the number 4 would be called a(n) __. a) subscript b) oxidation number c) coefficient d) charge 7. Which subatomic particle contributes the
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Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy D. F. Nachman 6/23/2010 Abstract: An ice calorimeter was used to study the reaction of magnesium metal and 1.00M sulfuric acid solution: Mg(s) + H2SO4(aq) →MgSO4(aq) + H2(g). We found the experimental molar enthalpy of reaction to be ΔH = –355 ± 17 kJ/mol at 0°C‚ 24% lower than the textbook value of ΔH° = –466.9 kJ/mol‚ reported at 25°C. Introduction Whether a chemical reaction occurs spontaneously or is driven by an outside
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administrator needs at least one week (minimum) to download‚ test‚ and install the patch. To calculate the Window of Vulnerability (WoV) for this security breach‚ the following timeline will be used as a guideline to determine the basis for calculation: However‚ first it is important to understand the variables considered in this timeline formula. The WoV is the period within which defensive measures are reduced‚ compromised‚ or lacking. The WoV covers
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of Kennecott using FCFcap is: $53.8 Value of Kennecott using FCFeq is: $49.91 Steps using FCFcap: Step 1: FCF_cap=EBIT(1-t)+depreciation+ amortization -Capex-change of NWC =NI+Interest(1-t) - Change of Net PPE - Change of NWC Step 2: WACC calculation: WACC=%Equity * Re + %Debt*Rd*(1-t) Re=Rf+beta*MRP=15.8% So‚ WACC= 65%*15.8%+35%*10%*(1-0.5)=12.03% Step 3: Multiply FCF with corresponding discount factors (1/(1+WACC)^n) PV(FCFcap)= 166.12 Step 4: Terminal value of equity = 116.2*10 – 117
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Basic Financial Calculations 1.1 Overview This chapter aims to give you some fi nance basics and their Excel implementation. If you have had a good introductory course in fi nance‚ this chapter is likely to be at best a refresher.1 This chapter covers • Net present value (NPV) • Internal rate of return (IRR) • Payment schedules and loan tables • Future value • Pension and accumulation problems • Continuously compounded interest Almost all fi nancial problems center on fi nding the value
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FUELS & COMBUSTION CALCULATIONS Unit 5 Prabir Basu TYPES OF FUELS FOSSIL FUELS Solid fuels (COAL) Liquid fuels (OIL) Gaseous fuels (NATURAL GAS) NUCLEAR FUELS RENEWABLE FUELS (BIOMASS) WASTE FUELS (MUNICIPAL WASTES) SOLID FUELS PROPERTIES HEATING VALUE ULTIMATE ANALYSIS PROXIMATE ANALYSIS ASH DEFORMATION POINTS Initial deformation temp. Softening temp. Hemispherical temp Fluid temp. LIQUID FUELS PROPERTIES HEATING VALUE
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