Relevance. In an exothermic reaction the opposite is true. AgNO3 added resulted in a precipitate and a very light pink color for every well showing a shift left as well. There will be more Silver Chloride as the K value is greater than 1. Steve O. Lv 7. Five drops of CoCl2 are dropped in each well. b) Water added to this solution would would have no affect on the equilibrium because it is a liquid. Info: CoCl2*6H2O(heat) might be an improperly capitalized: COCl2*6H2O(HeAt), CoCl2*6H2O(HeAt) Instructions and examples below may help to solve this problem You can always ask for help in the forum Instructions on balancing chemical equations: Enter an equation of a chemical reaction and click 'Balance'. Temperature is the only thing that causes a change in Kc or Kp value, for concentration and pressure respectively. 6. 3. A decrease of temperature in an exothermic reaction would result in a shift to the right. The opposite is also true, when there is a decrease in reactants or an increase in products there is a shift left made by the system. The color change is recorded. Five drops of AgNo3 are added to row D wells and stirred. 2. a) HCl almost completely splits apart into H+ and Cl- ions. The addition and removal of heat depends on whether the reaction is endothermic or exothermic. Temperature is another stress which a system will shift in order to accommodate. Five drops of CoCl2 are dropped in each well. In a test tube 5mL of CoCl is placed and mixed with enough HCl to create a purple color in between pink and blue. 3. e) A decrease in temperature would shift it left. 1. An increase in temperature, which is released by the reaction as a product, would cause a shift left. When HCl is added to a pink solution, it turns blue. Le Chatelier's principle is that when a system is at equilibrium it will shift in order to restore that equilibrium. it thpresence a lot of alcohol it converts into the blue ion [Co(Cl-)4]-2 These well are the mixed with a clean toothpick. This would lead to a shift to the left. The AgNO3 added would react with the Cl- to form AgCl, a solid, and therefore decrease the concentration of Cl-, a reactant, which then shifts the reaction to the left. 4. All safety equipment is put on and a beaker of 100mL of water is heated on a hot plate, not to a boil. The color change is recorded. There may also have been human error in placing the correct number of drops of each compound in the wells. Question: When CoCl2 Is Dissolved In Water, The Resulting Solutionis Pink Because Of The Presence Of (only) Octahedrally Coordinated[CoCl (H2O)5]+ Coordinationcomplex. This increase in Cl- concentration, a reactant, would cause the forward reaction rate of the system to increase in order to reach equilibrium. Any color change is recorded. Two drops of HCl are added to each well in column 1; four in column 2, six in column 3, eight in column 4, and ten in column 5. c) The addition of AgNO3 would shift it left. Le Chatelier's principle is all about how a system will adjust itself when stress is put on it in order to re-establish equilibrium. Five drops of CoCl2 are dropped in each well. This would result in slightly skewed color change interpretations as their concentrations would not be what it is labeled as. In an endothermic reaction heat is absorbed as a reactant so that if there is an increase in heat the system will shift towards the products in order to use up the additional heat. Meanwhile a well plate is marked in rows of A-D and columns 1-6, and placed on a sheet of paper. a) The addition of HCl would shift it right, b) The addition of water would shift it left. b) The addition of water would increase the concentration of water, which is a product. Any solid or liquid added or taken away will not affect equilibrium or cause a shift. 5. 8. Freezing Point Depression with Antifreeze. To a solution of HCl and CoCl2 the addition of more HCl causes more of a blue tinge to the wells indicating a shift right. 3. The color change is recorded. These well are the mixed with a clean toothpick. Create your own unique website with customizable templates. K is the equilibrium constant, and represents how far the reaction goes and shows direction. However the only concentrations that affect equilibrium are those that are a gas or aqueous. This has additional compounds and elements in it that may have reacted and changed concentrations of the compounds without direct manipulation. This increase of Cl- ions would be an increase in the concentration of the reactants and then shift the reaction more forward to reestablish equilibrium. Two drops of HCl are added to each well in column 1; four in column 2, six in column 3, eight in column 4, and ten in column 5. A decrease in temperature in an endothermic would cause a shift to the left towards the reactants as there is not enough heat to continue the forward reaction. Then chemicals are disposed of properly and hands washed. An increase in reactants or decrease in products results in an increase in the forward reaction rate, a shift to the right. 7. 10. 4. This means that the products are greater than the reactants. c) The addition of NaOH would neutralize some of the H+ in the reactants and decrease its concentration causing a shift left. These well are the mixed with a clean toothpick. 4. The color change is recorded. K values are calculated by placing products raised to their coefficients in a reaction over the reactants raised to their coefficients. Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents. 1. 5. If Concentrated Hydrochloric Acid Is Added To Thissolution, The Following Equilibrium Is Established: [CoCl (H2O)5]+ +Cl- [CoCl2 (H2O)2 ]+3H2O ΔH0 Where [CoCl2 (H2O)2 ] Is Alsosoluble In Water. 3. cocl2*6h2o+etoh= what is the balanced equation? The product in this case is AgCl. NaCl separates into ions, so with its addition there would be an increase in Cl- ions. One stress taken into account is a change in concentration. A source of error may have come from the use of tap water instead of distilled water. The thermal decomposition of hexahydrate cobalt (II) chloride to produce cobalt (II) chloride and water. Favorite Answer. Two drops of HCl are added to each well in column 1; four in column 2, six in column 3, eight in column 4, and ten in column 5. 3. Equilibrium is when the rate of the forward and the reverse reactions are the same. This reaction takes place at a temperature of 160-170°C in a flow dry HCl. balanced equation? 5. The purpose of this lab is to find the effects made by different stresses on a system at equilibrium. Examples of complete chemical equations to balance: Fe + Cl 2 = FeCl 3; KMnO 4 + HCl = KCl + MnCl 2 + H 2 O + Cl 2; K 4 Fe(CN) 6 + H 2 SO 4 + H 2 O = K 2 SO 4 + FeSO 4 + (NH 4) 2 SO 4 + CO; C 6 H 5 COOH + O 2 = CO 2 + H 2 O