Keq values
[DOC File]Equilibrium Practice Problems: using equilibrium constants ...
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By comparing the values of Q and Keq, you can determine whether or not the reaction is at equilibrium. If the reaction is not at equilibrium, you can decide whether the (net) reaction is going in the forward or reverse direction. If Q = Keq, then ratef = rater, the reaction is at equilibrium and no NET reaction occurs
[DOC File]Chemistry 12
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The Keq expression for 2A + 2B ⇆ 2C + 2D would be: which would be equal to (5.0)2 = 25 To summarize: When you double an equation, the new Keq value is the square of the Keq …
[DOC File]What Can Be Measured in a Colorful Equilibrium Reaction
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Calculate your mean value of Keq by averaging the Keq values for your five solutions. Calculate a standard deviation and report the Keq as value ± stand dev. The literature value of Keq for bromophenol blue is 1.15 ( 10ˉ4. The literature value of Keq for cresol red is 6.31 ( 10ˉ9.
[DOC File]Worksheet #8 Equilibrium Calculations
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Keq=0.0183 for the reaction: 2HI (g) ⇄ H2 (g) + I2 (g) If 3.0 moles of HI are placed in a 5.00L vessel and allowed to reach equilibrium, what is the equilibrium concentration of H2? 6. Consider the equilibrium: I2 (g) + Cl2 (g) ⇄ 2ICl (g) Keq= 10.0. The same number of moles of I2 and Cl2 are placed in a 1.0L flask and allowed to reach ...
[DOC File]Experiment 11 Electrochemical Cells and Thermodynamics
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5. Calculate the Keq for the reaction by using the equation: (11) Part two: Effect of temperature on the cell potential: 1. Calculate the value of ∆Go for each temperature using the equation in kJ. 2. Graph the values of ∆Go versus the absolute temperature. 3.
[DOC File]Equilibrium Worksheet - AICE Chemistry
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The Keq value for the formation of sulphur trioxide gas from sulphur dioxide and oxygen gas is 4.5. If the equilibrium concentration of oxygen was 2.0 M, determine the number of moles of sulfur trioxide originally present in a 1.0 L vessel. [16 mol] 2 SO2(g) + O2(g) ⇌ 2 SO3(g) Keq=4.5 V=1.0L
[DOC File]An Introduction to Equilibrium
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Why do different reactions have different values of Keq? By now you should see that Keq depends on the ratio of the rate constants for the forward and reverse reactions. Every reaction has a characteristic rate constant so every reaction has a different value of Keq that depends only on temperature. (Changing the temperature changes the ratio ...
[DOC File]Total Dissolved Solids - Mrs. Wentzel's Chemistry Classes
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These values will be substituted into the equilibrium constant expression to see if Keq is indeed constant. In order to determine [FeSCN2+]eq, you will use the Colorimeter shown in Figure 1. The FeSCN2+ ion produces solutions with a red color.
[DOC File]There are 4 Basic Types of Calculations involving Keq:
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We know the value of Keq (55.6 in this case), so we plug the values from the table into the Keq expression and solve for x! H2 + I2 2HI. Plugging in values for equilibrium concentrations from the [E] row of the ICE Table: This looks an awful lot like a quadratic, but relax! (we don't use those in …
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