2-You'll find information on the propertiesSuppose a 0.26 M aqueous solution of oxalic acid (H,C,04) is prepared. Calculate the equilibrium molarity of C, O4of oxalic acid in the ALEKS Data resource.nDataRound your answer to 2 significant digits.[+] Standard reduction potentials at 25°CFor example, the potentials you'll need to calculate the voltage of a battery.M-1 pKa of weak acids at 25°CpKa3pKa2pKa1FormulaNameCH3CO2H4.756acetic acid4.204C6H5CO2Hbenzoic acidC3H7CO2H4.83butanoic acidC3H6CICO2H4.524-chlorobutanoic acid4.69C3H5CO2Hcrotonic acidH2C2043.811.25оxalic acid12.327.212.16НзРО4phosphoric acid4.87C2H5CO2Hpropionic acid0P1.99H2SO4strong acidsulfuric acidC4H9CO2H5.03trimethylacetic acid[+] Solubility product constants (Ksp)CheckExplanationFor example, the physical constant that will let you calculate the solubility in water at 25°C of AgCl.EndHomeEscF10F9FBF6F5F4F3FaLocKF1&7

Question
Asked Nov 30, 2019
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Calculate the equilibrium molarity of C2O4^2-

2-
You'll find information on the properties
Suppose a 0.26 M aqueous solution of oxalic acid (H,C,04) is prepared. Calculate the equilibrium molarity of C, O
4
of oxalic acid in the ALEKS Data resource.
nData
Round your answer to 2 significant digits.
[+] Standard reduction potentials at 25°C
For example, the potentials you'll need to calculate the voltage of a battery.
M
-1 pKa of weak acids at 25°C
pKa3
pKa2
pKa1
Formula
Name
CH3CO2H
4.756
acetic acid
4.204
C6H5CO2H
benzoic acid
C3H7CO2H
4.83
butanoic acid
C3H6CICO2H
4.52
4-chlorobutanoic acid
4.69
C3H5CO2H
crotonic acid
H2C204
3.81
1.25
оxalic acid
12.32
7.21
2.16
НзРО4
phosphoric acid
4.87
C2H5CO2H
propionic acid
0P
1.99
H2SO4
strong acid
sulfuric acid
C4H9CO2H
5.03
trimethylacetic acid
[+] Solubility product constants (Ksp)
Check
Explanation
For example, the physical constant that will let you calculate the solubility in water at 25°C of AgCl.
End
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2- You'll find information on the properties Suppose a 0.26 M aqueous solution of oxalic acid (H,C,04) is prepared. Calculate the equilibrium molarity of C, O 4 of oxalic acid in the ALEKS Data resource. nData Round your answer to 2 significant digits. [+] Standard reduction potentials at 25°C For example, the potentials you'll need to calculate the voltage of a battery. M -1 pKa of weak acids at 25°C pKa3 pKa2 pKa1 Formula Name CH3CO2H 4.756 acetic acid 4.204 C6H5CO2H benzoic acid C3H7CO2H 4.83 butanoic acid C3H6CICO2H 4.52 4-chlorobutanoic acid 4.69 C3H5CO2H crotonic acid H2C204 3.81 1.25 оxalic acid 12.32 7.21 2.16 НзРО4 phosphoric acid 4.87 C2H5CO2H propionic acid 0P 1.99 H2SO4 strong acid sulfuric acid C4H9CO2H 5.03 trimethylacetic acid [+] Solubility product constants (Ksp) Check Explanation For example, the physical constant that will let you calculate the solubility in water at 25°C of AgCl. End Home Esc F10 F9 FB F6 F5 F4 F3 FaLocK F1 & 7

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Expert Answer

Step 1

Given data:

Concentration of oxalic acid = 0.26 M
pK of oxaic acid =1.25
pK of oxalic acid 3.81
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Concentration of oxalic acid = 0.26 M pK of oxaic acid =1.25 pK of oxalic acid 3.81

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Step 2

The relation between Ka and pKa is shown below.

=-log[K,]
1.25 log [K
K 10125
al
0.056
pK-log [K
3.81= -log[K
K10381
= 0.00015
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=-log[K,] 1.25 log [K K 10125 al 0.056 pK-log [K 3.81= -log[K K10381 = 0.00015

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Step 3

Oxalic acid is a diprotic acid. Therefore, it dissociates twice when dissolved in ...

C,HO; (aq) H (a)
C,H2O.(aq)
Initial conc
0.26
0
0
Change in conc
Equilibrium conc. (0.26-x)
x
x
-x
x
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C,HO; (aq) H (a) C,H2O.(aq) Initial conc 0.26 0 0 Change in conc Equilibrium conc. (0.26-x) x x -x x

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