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1. Write the chemical equation for the dissociation of HC2H3O2 in water.
2. Is the forward reaction in the equation that you wrote exothermic or endothermic? Briefly explain your answer (one or two sentences).
3. Write the net ionic equation for the [CoCl4]2-/Co(H2O)6]2+ equilibrium.
4. Use Le Chatelier's principle to explain the color change which you observed after the addition of distilled water to the equilibrium mixture above.
5. Write the chemical equation for the dissolution of NH4Cl in water, including the heat term.
6. Briefly explain how the addition of a catalyst would affect: a) how quickly a reaction reaches equilibriumb) the concentrations of reactants and products at equilibrium
7. What effect would the addition of a catalyst have on a system already at equilibrium?
8. List three ways that a chemical system at equilibrium can be disturbed.
When hydrochloric acid of 200 mL was mixed to a small piece of CaCO3 in the same calorimeter, the temperature increased by 4.25 degree celsius. determine the heat output for this reaction?
Calculate the number of carbon atoms in 0.75 L of acetone (CH3COCH3). (density = 1.3 g/mL and boiling point = 48.5 degrees Celsius)
The equilibrium constant, Kp, for the following reaction is 0.497 at 500 K: PCl5(g) PCl3(g) + Cl2(g) Calculate the equilibrium partial pressures of all species when PCl5(g) is introduced into an evacuated flask at a pressure
What are some ways to induce recrystallization (Name 3), if your solute refuses to recrystallize after performing the required 7 steps? the seven-step recrystallization procedure
Calculate the molarity of 464 mL of a solution that contains 135 g of sucrose C12H22O11
Calculate the volume of a .850 M KOH solution necessary to neutralize 25.00 mL of 1.500 M solutions
An acre of corn can produce about 375 gallons of ethanol, using only the kernel of the corn for conversion to ethanol. Assume the energy input to produce an acre of corn is 15000000 kJ.
When 0.800 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 13C is observed.Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL.
Determine the percent yield if a student decomposes H 2 O to Form hydrogen (H) and oxygen(O). If the student starts with 34.7 grams of H2O and collects 20.0 grams of oxygen,
If the temperature of a sample of gas with an initial volume of 1.75 is increased form 15.0 c to 30.0c, what will the final volume be.
What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128
A calorimeter contains 17.0 mL of water at 15.0 degrees celcius When 1.40 g of (a substance with a molar mass of 69.0 g/mol) is added, it dissolves via the reaction X(s)+H2O(l)->X(aq)
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