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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back" and "the show" are both metaphors. The money represents time‚ while the show is representative of life. No matter what‚ in the end‚ we can’t get back time‚ so her speeding through time and never enjoying events of everyday life is making life difficult. She caught in between getting through life with a keen direction‚ and with just loving where shes at in her life. When she realizes it in the end‚ she wants time back "I want my money back‚" she ends with "Just enjoy the show." Just enjoy your
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The movie Equilibrium directed by Kurt Wimmer‚ and the book 1984 written by George Orwell both explore what would happen when a government has complete control. When you let someone think for you and make all of your decisions‚ you lose what makes you human‚ which is your free will‚ and your ability to make conscious decisions. In both the text and movie they take away human identity to gain control. The key differences are the ways Big Brother and Father seize control‚ and what effect it has on
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’Describe behaviourist and cognitive approaches to consumer learning theory and discuss the implications of these theories for marketing practice’ Learning is one of the major determinants of human behavior. Psychologists are of the opinion that all human behavior involves some form of learning. Human beings are not born with the knowledge or skills that could be used as guidelines of how to behave for their daily life. Knowledge or skills are obtained from learning. Learning is an unconscious activity
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The First and Second Conditions for Equilibrium The first condition for equilibrium: The second condition for equilibrium: • • ΣF = 0 ΣΓ = 0 • In when both of these conditions are satisfied in static systems all forces and torques sum to zero. In problems where the first and second conditions of equilibrium are satisfied‚ the best strategy is to create FBD’s for both the first and second conditions‚ derive equations based on these FBD’s and then see what useful information may be gleaned from
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experimental measurement of Vapor Liquid Equilibrium for the Ethanol – Water system to verify the literature data. For this the Ethanol – Water system was heated to a certain temperature which is called the equilibrium temperature at atmospheric pressure and equilibrium temperature and compositions of vapor and liquid were measured. At the equilibrium temperature the samples of both vapor and liquid were taken in two different test-tube and the refractive index of both the samples were measured by a Refractometer
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Stephany Matos Chem Lab: Chemical Equilibrium Lab 52 Synopsis Iron (III) ions react with thiocyanate ions (SCN-) to form iron (III) thiocyanate‚ FeSCN2+. It is represented in the equation below: Fe3+ (aq) + SCN- (aq) FeSCN2+ (aq) Therefor the equilibrium constant for this reaction is: KC = [FeSCN2+]/([Fe3+]•[SCN-] For this experiment we were able to determine the equilibrium constant KC for this reaction. First we prepared five different mixtures with known initial concentrations of
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Of course nurture has a big hold on how we grow up‚ but nature truly is the stronger of the two. Identical twins‚ for example‚ have more similarities than differences‚ and we truly stay who we are throughout our lives. So all in all‚ studies show how the nature side has more effect on a child than the nurture side does. I know that nature has a stronger hold on a child than nurture does. Identical twins can have some differences‚ because they aren’t the same person‚ so normally they are more alike
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1. Suppose that the international market for beef is in equilibrium. Describe in a written sentence how the following change to a determinant of supply and/or demand will affect the equilibrium price and quantity. Illustrate each answer with a supply-and-demand diagram depicting the shift(s) and the resulting effect on price and quantity a. Outbreak of mad cow disease kills off much of the cattle stock. b. The price of chicken‚ a substitute‚ declines sharply. c.
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at equilibrium 2. To observe shifts in equilibrium concentrations as stresses are applied to the systems. 3. To observe a shift in equilibrium concentrations associated with changes in temperature. 4. To explain the observations obtained by applying Le Chatelier’s principle. Materials Refer to page 209 of Heath Chemistry Laboratory Experiments. Procedure Refer to pages 209 – 211 of Heath Chemistry Laboratory Experiments. Data and Observations Part I: Equilibrium Involving
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