CH 127 – Chem 2 Lab Determination of an Equilibrium constant Goals The purpose of this experiment is to determine the equilibrium constant for the reaction Fe3+(aq) + HSCN(aq) –>FeSCN2+(aq) + H+(aq). The equilibrium constant expression Kc for Reaction is kc=FeSCN2+[H+]Fe3++[HSCN] Procedure *Preparation of the Beer’s law plot Prepare five solutions of FeSCN2+(aq) of known concentrations between 1x10-5M and 1x10-4M by diluting various volumes of 4.62x10-4 HSCN. Calculate the Final concentration
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Paradigm Shift GS1140 The Car Physically I believe cars will almost certainly continue to look just like they currently do there seems to be no impetus to make radical changes in the actual appearance of cars. However‚ there are some fairly radical changes coming to the construction and design of the actual car as a vehicle. Here are some of them which are currently in the prototype stage‚ and which likely will become commonplace I believe within the next 20 years‚ Car Trains‚ Driverless
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Lab O6 – Equilibrium Lab Application Purpose: An introduction to the qualitative aspects of chemical equilibrium. Starting with a reaction at equilibrium‚ one will change the concentration of various ions present in the equilibrium‚ and record the states of the changing equilibrium through observation. Theory: Equilibrium- the point at which a solution has become perfectly saturated; when their forward and reverse reaction rates are equal Concentration- a measurement of how much solute
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outside market influences how goods are sold. Supply and demand: According to this theory‚ the supply of an item and its demand affect its price. An item that is in high demand will have a high price. An item that has a low demand will have a low price. Market structure is another economic pricing theory. This theory looks at how many outlets in a given area offer the same (or similar) products. Elasticity of demand measures how much someone will pay for a product before being forced to seek another alternative
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temperature. Calculating Solubility 2g potassium chlorate dissolves in 20g water at 28oC what is its solubility? 2 x 100/20 = 10.0g potassium chlorate/100g water 4g potassium sulphate dissloves in 30g water at 50oC what is its solubilty? 4 x 100/30 = 13.33g potassium sulphate/100g water 30g sodium chloride dissolves in 75g water at 10oC what is its solubility? 30 x 100/75 = 40g sodium chloride/100g water Solubility Of Gases Carbon dioxide is the gas which is dissolved in fizzy
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VALUE Vs PRICE There are four major attributes of a commodity i.e.‚ an item or service produced for‚ and sold on the market has four major attributes. They are: • a value • a use‐value (or utility) • an exchange value • a price (it could be an actual selling price or an imputed ideal price) VALUE In simple words‚ value refers to the importance of a thing or utility of a commodity. But in economics the term “value” has a quite different meaning. According to the famous economist
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The Concept of Equilibrium and the Equilibrium Constant + What is equilibrium? A state of balance It can be static (like tug o war) It can be dynamic‚ like cars moving across a bridge‚ and like most of the reactions we will be studying + Chemical Equilibrium Occurs when opposing reactions are proceeding at equal rates Rate at which products form is equal to the rate at which reactants disappear Have the illusion that the reaction has stopped +At equilibrium‚ the concentrations
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S-curve describes how the performance or cost characteristics of a technology change with time and continued investments. While the horizontal axis shows the history (time and investment) of technical innovations‚ the vertical axis shows some problems of product performance or cost competitiveness. The pace of improvement slows when the established technology is improved and approaching its maturity. Many problems which a new technology has to face with are solved over time and with investment
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experienced many hardships from the British‚ and at multiple times were let down from what they estimated they were deserving of. The “J curve” is known as a diagram indicating the climbing up and the sudden down of any idea‚ or action. The “J curve” is an accurate representation of the colonist’s expectations at the time of the “oppressive” British. The “J curve” seems to center around two main points for the colonists. The first was the wars they fought‚ the outcomes‚ and the government and the
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Demand and Supply I Learning Objective:- Demand • Explain the concepts of demand • Explain the law of demand • Distinguish between movement along and shift of the demand curve • Analyse the effects of changes in the price & the non-price determinants of demand INTRODUCTION Supply and demand are the two words that economists use most often. INTRODUCTION MARKETS • Buyers determine demand. • Sellers determine supply. Demand • Demand:- quantity which people are willing and able to buy at
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