Which direction will the reaction proceed to reach equilibrium? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select a a It will proceed toward the reactant side. b It will proceed toward the product side. The reaction is already at equilibrium. d That cannot be determined from the given information.

Chemistry
10th Edition
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Consider a 0.35 M solution of weak acid HX(aq). Let's go ahead and determine its pH.
Step 1: Write out the aqueous equilibrium when weak acid HX(aq) donates a proton to water.
Step 2: Construct an ICE table by first filling in what you can from the given information.
HX(aq)
+ H,O()
H,O'(aq)
+ X(aq)
0.35 M
0.00
0.00
C
E
Table 15.4. ICE Table. Please click here for a plain-text version of Table 15.4.
Step 3: Fill the in remaining rows of the ICE table (Equation 15.23).
HX(aq) + H2O(1) = H3O*(aq) + X-(aq)
0.35 M
C
-x
+x
0.35 -x
Step 4: Plug in the equilibrium expressions into the equation for Ka and solve for x (Equation
15.24).
[H,0*]„[x].
Ka=
(HX]eq
0.35-z
HX]o-*
Equation 15.24
Transcribed Image Text:Consider a 0.35 M solution of weak acid HX(aq). Let's go ahead and determine its pH. Step 1: Write out the aqueous equilibrium when weak acid HX(aq) donates a proton to water. Step 2: Construct an ICE table by first filling in what you can from the given information. HX(aq) + H,O() H,O'(aq) + X(aq) 0.35 M 0.00 0.00 C E Table 15.4. ICE Table. Please click here for a plain-text version of Table 15.4. Step 3: Fill the in remaining rows of the ICE table (Equation 15.23). HX(aq) + H2O(1) = H3O*(aq) + X-(aq) 0.35 M C -x +x 0.35 -x Step 4: Plug in the equilibrium expressions into the equation for Ka and solve for x (Equation 15.24). [H,0*]„[x]. Ka= (HX]eq 0.35-z HX]o-* Equation 15.24
Q15.25
Homework • Unanswered
Which direction will the reaction proceed to reach equilibrium?
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
It will proceed toward the reactant side.
a
It will proceed toward the product side.
The reaction is already at equilibrium.
d
That cannot be determined from the given information.
Transcribed Image Text:Q15.25 Homework • Unanswered Which direction will the reaction proceed to reach equilibrium? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. It will proceed toward the reactant side. a It will proceed toward the product side. The reaction is already at equilibrium. d That cannot be determined from the given information.
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