Question
Asked Dec 10, 2019
1 views
Be sure to answer all parts.
Calculate the concentrations of H,C,0,, HC,0,,C,0,, and H* ions in a 0.301 M oxalic acid solution
at 25°C. (K,, = 6.5 x 10-2 and K,, = 6.1 x 105 for oxalic acid.)
[H,C,0,] =
|м
[HC,0,]=
[C,0,]=
[H'] = M
x 10 M
(Enter
your answer in scientific notation.)
help_outline

Image Transcriptionclose

Be sure to answer all parts. Calculate the concentrations of H,C,0,, HC,0,,C,0,, and H* ions in a 0.301 M oxalic acid solution at 25°C. (K,, = 6.5 x 10-2 and K,, = 6.1 x 105 for oxalic acid.) [H,C,0,] = |м [HC,0,]= [C,0,]= [H'] = M x 10 M (Enter your answer in scientific notation.)

fullscreen
check_circle

Expert Answer

Step 1

Dissociation reactions of oxalic acid is given below,

help_outline

Image Transcriptionclose

Н.С,О, + Н,о НС,О, + Н,о" K, — 6.5х10-2 al С,о +Н,о" 6.1x10-5 НС,О, + Н,О K, = Here, [нC о: [н,о"] [Н.С.О,] [со: Тно] нC о:] K,2

fullscreen
Step 2

ICE table is constructed for the first dissociation as follows,

help_outline

Image Transcriptionclose

Н.О (ад H,O(1) + H,C,O, НС 0, + Initial 0.301 Change +x -X +X (0.301- x) Equilibrium X х K, can be given as: (x -X) Kal (0.301 – x) х? 6.5x10-2 (0.301– x Solving for x, X = 0.111 [H,C,0,]=(0.301– x) = 0.19 M Equilibrium concentration of H,C,0, is 0.19 M [H,0*]=[HC,0;]= 0.111 M = Concentration after 1* dissociation

fullscreen
Step 3

ICE table is constructed for the sec...

help_outline

Image Transcriptionclose

C,0 + Н.О (ад) Н.О(1) + НС,О, Initial 0.111 0.111 Change +X -X +X (0.111+x) (0.111-x) Equilibrium X K, can be given as: X - (0.111+ x) (0.111-x) ra2 (0.111x + x?) 6.1x10- = (0.111-x) Solving for x, X = 6.1x10- C,0;= 6.1x10³ M at equilibrium

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: What is one species that could spontaneously oxidize metallic silver to silver cations? Write the ba...

A: Click to see the answer

question_answer

Q: Solid ammonium chloride, NH Cl, is formed by the reaction of gaseous ammonia, NH,, and hydrogen chlo...

A: Given that the mass of ammonia and HCl is 6.05 g and 6.05 g respectively. The reaction is given belo...

question_answer

Q: Which of the following electrons will experience the greater effective nuclear charge? the electron...

A: part AThe following formula gives effective nuclear charge

question_answer

Q: How many grams of silver chloride can be made by reaction of 5.00 g of silver nitrate with 5.00 g of...

A: GivenMass of silver nitrate = 5gMass of aluminum chloride= 5g The equation for the given reaction is

question_answer

Q: A solution of ethanol (C2 H5 OH) in water is prepared by dissolving 75.0 mL of ethanol (density = 0....

A: Given,Volume of ethanol, C2H5OH = 75.0 mLDensity of ethanol = 0.79 g/cm3 = 0.79 g/mL     (1 g/cm3 = ...

question_answer

Q: A 4.626 g sample of a hydrocarbon, upon combustion analysis, yielded 6.484 grams of carbon dioxide. ...

A: Given:Mass of a sample is 4.626 g.Mass of carbon dioxide is 6.484 g.

question_answer

Q: 5. What volume of beer that is 6.0 % by volume alcohol contains 200. ml CH3CH,OH (ethyl alcohol)?

A: Given:Volume/Volume % = 6.0 %Volume of ethyl alcohol = 200.0 mL

question_answer

Q: a)Place the following gases in order of increasing average molecular speed at 0 degrees C: Ne, Ar, C...

A: Part (a).Molecular speed is inversely proportional to the molar mass of the molecule. Greater the mo...

question_answer

Q: In the reaction of silver nitrate with sodium chloride, how many grams of silver chloride will be pr...

A: Given reaction:AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)