Determination of Equilibrium Constants Introduction Bromothymol blue is an indicator for many acid-base titrations. When adding different solutions within the indicator it is to react and change colors‚ in this experiment the different colors were blue‚ green‚ and yellow. In the following experiment‚ obtaining the absorbance levels for each one makes it possible to calculate the equilibrium constant. Materials and Methods For this specific experiment there are a few materials that are crucial
Premium Acid dissociation constant PH
CHM 096 TUTORIAL 2 (Chemical Equilibrium) Jan 2013 1. Write the equilibrium constant expression‚ Kc‚ for each of the following reactions: a) b) c) d) e) f) 2NO(g) + O2(g) ⇄ 2NO2(g) The decomposition of solid potassium chlorate to solid potassium chloride and oxygen gas. 4HCl(g) + O2(g) ⇄ 2H2O(g) + 2Cl2(g) 2NO2(g) + 7H2(g) ⇄ 4H2O(l) + 2NH3(g) H2O(g) + C(s) ⇄ CO(g) + H2(g) The reduction of solid copper (II) oxide with hydrogen gas to produce copper metal and water at o 500 C. 2H2(g) + O2(g)
Premium Chemical equilibrium
Introduction: Chemical equilibrium is when the concentrations of the reactants and products have reached a state where reactions occurring in one direction are at the same rate of reactions occurring in the opposite direction. This process‚ called dynamic equilibrium‚ is the main subject of Le Chatelier’s Principle. Le Chatelier pointed out that if a system at equilibrium is subjected to a stress that momentarily causes the system to be not in equilibrium‚ a spontaneous change will occur to
Premium Chemical reaction Chemistry Chemical equilibrium
Renewable energy is a microeconomics situation‚ it’s thriving for different type of business‚ and it’s becoming a substantial topic in the United States. Renewable energy is any energy that its source is naturally replenished‚ which is solar‚ wind‚ geothermal or hydroelectric action. There’s another type of source called fossil fuel which is coal‚ oil‚ or gas there are nonrenewable source. Fossil fuels provide energy at a lower cost than renewable energy‚ but fossil fuel is the largest source of
Premium Fossil fuel Energy development Wind power
DISCUSSION Chemical equilibrium and its different applications were studied in this experiment. The Le Chatelier’s principle‚ which is the main principle behind chemical equilibrium‚ states that‚ “If an external stress is applied to a system at equilibrium‚ the system adjusts in such a way that the stree is partially offset as the system reaches a new equilibrium position.”[1] The “stress” can be a change in concentration‚ volume‚ pressure‚ or temperature that disturbs the equilibrium
Premium Harvard University College John F. Kennedy
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
Premium Color Red Blue
Physics lab:9 Equilibrium of parallel force 11/09/2012 By: Camilo Salazar Jillian Ellis Purpose: To understand the conditions need for a rigid body to be in equilibrium when there are forces acting on the body from different sides. Theory: When force is applied on a rigid body for example a ruler it can either be in equilibrium or it can be unbalance. When the force is unbalance what would happen is this motion the body can be either translational or rotational. “A body in translational
Premium Force Classical mechanics Torque
| Heinz Analysis | A Microeconomic Analysis | | [Estela Trejo] | 5/19/2011 | Term Paper: Microeconomic Analysis | Company Synopsis H. J. Heinz Company was founded back in 1869 in Sharpsburg‚ Pennsylvania‚ by Henry John Heinz. Its first product was horseradish‚ although ketchup has now taken the spotlight. In 1926‚ Heinz celebrated its 57th Anniversary. In 1914‚ Heinz invented Heinz Salad Cream in England‚ which remains England’s favorite still today. Also during
Premium H. J. Heinz Company Ketchup
07.04 Equilibrium: Lab Report Equilibrium Lab Report Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Data and Observations: Insert data tables for each part of the lab (Part I‚ Part II‚ and Part III). Part I Round Reactants Products 1 25 15 2 19 21 3 17 23 4 16 24 5 16 24 6 16 24 7 16 24 8 16 24 9 16 24 10 16 24 25+19+17+16(7)=173 15+21+23+24(7)=227 Product/Reactants==227/213=1
Free Chemical reaction Ratio Chemical equilibrium
Experiment 1: Study of Solubility Equilibrium Data Treatment and Analysis Section 1: Solubility Product Constant Temperature (˚C) | Volume of NaOH used (mL) | | | | Titration 1 | Titration 2 | Average | 28 | 12.7 | 12.8 | 12.75 | 9 | 10.5 | 10.5 | 10.5 | 19 | 11.3 | 11.2 | 11.25 | 40 | 16.2 | 16.2 | 16.2 | 50 | 22.8 | 22.9 | 22.85 | Table 1: The volume of NaOH used in the titration at various temperatures. No. of moles of KHC4H4O6 = 1.45 g ÷ 188.177g/mol = 7.71 x 10-3mol
Premium Solubility Thermodynamics Ion