Homework Answers
------- H2C6H6O6(aq) + H2O(l) ------------> HC6H6O6^- (aq) + H3O^+ (aq)
I -------- 0.235 ------------------------------------ 0 ----------------- 0
C ------ -x ------------------------------------------- +x -----------------+x
E ----- 0.235-x --------------------------------- +x ---------------- +x
Ka1 = [HC6H6O6^-]{H3O^+]/[H2C6H6O6]
7.9*10^-5 = x*x/(0.235-x)
7.9*10^-5*(0.235-x) = x^2
x = 0.0043
[HC6H6O6^-] = x = 0.0043M
[H3O^+] = x = 0.0043M
HC6H6O6^- (aq) + H2O(l) ---------------> C6H6O6^2- (aq) + H3O^+ (aq)
Ka2 = [C6H6O6^2-][H3O^+]/[HC6H6O6^-]
1.6*10^-12 = [C6H6O6^2-]*0.0043/0.0043
[C6H6O6^2-] = 1.6*10^-12M>>>answer
PH = -log[H3O^+]
= -log0.0043
= 2.3665
Add Answer to:
TUTOR Polyprotic Acid Calculations For a 0.235 M solution of H2C H06, calculate both the pH...
For a 7.95x10-2 M solution of H,C0g, calculate both the pH and the CO2-ion concentration. State symbols are not shown f...
For a 7.95x10-2 M solution of H,C0g, calculate both the pH and the CO2-ion concentration. State symbols are not shown for water or the aqueous species in the reaction equations. HỌCO, + HọO 2 Hyo* + HCO, HCO3 + H20 H30* + CO32- Ka = 4.2x10? K22 = 4.8*10-11 pH = [C0321 = M
Tutored Practice Problem 17.3.5 COUNTS TOWAIDA CHEE Calculate the pH and concentration of species present in...
Tutored Practice Problem 17.3.5 COUNTS TOWAIDA CHEE Calculate the pH and concentration of species present in a polyprotic acid solution. Close Problem For a 5.96X10 M solution of H2CO3, calculate both the pH and the Co, ion concentration. H2CO3 + H20= HCO3 + H20= H20* + HCO3 K1 = 4.2*10-7 H30* +CO;2- K2 -4.810-11 pH (CO3? Check & Submit Answer Show Approach Polyprotic Acid Titration Plots The pH plot for the titration of the diprotic acid maleic acid, HOC(CH), CO,H,...
Calculate the pH and concentration of species present in a polyprotic acid solution.
Calculate the pH and concentration of species present in a polyprotic acid solution.For a 3.44×10-3 M solution ofH2CO3, calculate both the pH and the CO32- ion concentration.H2CO3 + H2O → H3O+ +HCO3-Ka1 = 4.2×10-7HCO3- + H2O → H3O+ +CO32-Ka2 = 4.8×10-11pH =[CO32-] =
Tulureu Praelite Prudeni 10.3.4 COUNTS TOWARDS GRADE LIUSU FIUDI Calculate ka or ko from experimental data....
Tulureu Praelite Prudeni 10.3.4 COUNTS TOWARDS GRADE LIUSU FIUDI Calculate ka or ko from experimental data. The pH of a 0.13-M solution of chlorous acid (HCIO,) is measured to be 1.51. Use this information to determine a value of K, for chlorous acid. HCIO2(aq) + H20(I) =C10, (aq) + H30+(aq) KED Check & Submit Answer Show Approach The pOH of an aqueous solution at 25°C was found to be 6.80. The pH of this solution is The hydronium ion concentration...
Calculate the hydronium ion concentration in an aqueous solution of 0.165 M carbonic acid, H,CO, (aq)....
Calculate the hydronium ion concentration in an aqueous solution of 0.165 M carbonic acid, H,CO, (aq). [H20"]= M. Submit Answer Retry Entire Group 4 more group attempts remaining
Chapter 15, Question 22 For a 0.0365 M aqueous solution of cyanic acid, HCNO (Kg =...
Chapter 15, Question 22 For a 0.0365 M aqueous solution of cyanic acid, HCNO (Kg = 3.5*10-4), determine the following. X Incorrect. What are the major and minor species present? Include phase. What is the major species (other than water)? HCNO Edit What is the minor species (other than H30+ and OH)? CNO Edit LINK TO TEXT X Incorrect CES X Incorrect. 8 What is the concentration of the minor species in the solution? X 4 M The number of...
is the pH and pOH of the acid solution with [H'] = 0.38 M? What is...
is the pH and pOH of the acid solution with [H'] = 0.38 M? What is the [H30") and TOH concentration of an acid solution with pH = 5.5? 3. How many liters of 0.186 M of NaOH(aq) contain 0.135 mol of NaOH? If 0.123 g NaOH is dissolved in enough water to make 250.0 mL of solution, what is the molarity (M) of the sodium hydroxide solution? If 2.00 mL of 0.456 M NaOH is diluted to exactly 100...
Plz answer 1. Calculate the concentration of H30" in a solution that contains 5.0 Identify the...
Plz answer
1. Calculate the concentration of H30" in a solution that contains 5.0 Identify the solution as acidic, basic, or neutral. A) 2.0x 10-5 M, basic D) 9.0x 10-1 M, acidic 10-10 M OH at 25°C B) 2.0 10-5 M, acidic E) 9.0 10-1 M. basic 2. Calculate the [H3O~] concentration in an aqueous solution with a pH of 9.85 at 25 C c)5.0x 10-10 M, neutral A) 7.1x 10-5 M B) 4.2x 10-10 M C)8.7 10-10 M E)...
15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBrO, at 25°C is...
15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBrO, at 25°C is 4.17. What is the value of K for HBro? a) 2.0 x 10 b) 1.1 x 10 c) 1.08 x 10° d) 7.34 x 10 e) 6.8 x 10 16) The molar concentration of hydronium ion in pure water at 25°C is (á) 1.0 x 10? b) 0.00 c) 1.0 x 1024 d) 1.0 e) 7.00 117) A solution is prepared by dissolving 0.23...
A buffer solution is able to maintain a constant pH when small amounts of acid or...
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 mL solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O,. The initial concentration of both the acid and the base are 0.0100 mol/ 0.1000 L...
For a 7.95x10-2 M solution of H,C0g, calculate both the pH and the CO2-ion concentration. State symbols are not shown for water or the aqueous species in the reaction equations. HỌCO, + HọO 2 Hyo* + HCO, HCO3 + H20 H30* + CO32- Ka = 4.2x10? K22 = 4.8*10-11 pH = [C0321 = M
Tutored Practice Problem 17.3.5 COUNTS TOWAIDA CHEE Calculate the pH and concentration of species present in a polyprotic acid solution. Close Problem For a 5.96X10 M solution of H2CO3, calculate both the pH and the Co, ion concentration. H2CO3 + H20= HCO3 + H20= H20* + HCO3 K1 = 4.2*10-7 H30* +CO;2- K2 -4.810-11 pH (CO3? Check & Submit Answer Show Approach Polyprotic Acid Titration Plots The pH plot for the titration of the diprotic acid maleic acid, HOC(CH), CO,H,...
Tulureu Praelite Prudeni 10.3.4 COUNTS TOWARDS GRADE LIUSU FIUDI Calculate ka or ko from experimental data. The pH of a 0.13-M solution of chlorous acid (HCIO,) is measured to be 1.51. Use this information to determine a value of K, for chlorous acid. HCIO2(aq) + H20(I) =C10, (aq) + H30+(aq) KED Check & Submit Answer Show Approach The pOH of an aqueous solution at 25°C was found to be 6.80. The pH of this solution is The hydronium ion concentration...
Calculate the hydronium ion concentration in an aqueous solution of 0.165 M carbonic acid, H,CO, (aq). [H20"]= M. Submit Answer Retry Entire Group 4 more group attempts remaining
Chapter 15, Question 22 For a 0.0365 M aqueous solution of cyanic acid, HCNO (Kg = 3.5*10-4), determine the following. X Incorrect. What are the major and minor species present? Include phase. What is the major species (other than water)? HCNO Edit What is the minor species (other than H30+ and OH)? CNO Edit LINK TO TEXT X Incorrect CES X Incorrect. 8 What is the concentration of the minor species in the solution? X 4 M The number of...
is the pH and pOH of the acid solution with [H'] = 0.38 M? What is the [H30") and TOH concentration of an acid solution with pH = 5.5? 3. How many liters of 0.186 M of NaOH(aq) contain 0.135 mol of NaOH? If 0.123 g NaOH is dissolved in enough water to make 250.0 mL of solution, what is the molarity (M) of the sodium hydroxide solution? If 2.00 mL of 0.456 M NaOH is diluted to exactly 100...
Plz answer
1. Calculate the concentration of H30" in a solution that contains 5.0 Identify the solution as acidic, basic, or neutral. A) 2.0x 10-5 M, basic D) 9.0x 10-1 M, acidic 10-10 M OH at 25°C B) 2.0 10-5 M, acidic E) 9.0 10-1 M. basic 2. Calculate the [H3O~] concentration in an aqueous solution with a pH of 9.85 at 25 C c)5.0x 10-10 M, neutral A) 7.1x 10-5 M B) 4.2x 10-10 M C)8.7 10-10 M E)...
15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBrO, at 25°C is 4.17. What is the value of K for HBro? a) 2.0 x 10 b) 1.1 x 10 c) 1.08 x 10° d) 7.34 x 10 e) 6.8 x 10 16) The molar concentration of hydronium ion in pure water at 25°C is (á) 1.0 x 10? b) 0.00 c) 1.0 x 1024 d) 1.0 e) 7.00 117) A solution is prepared by dissolving 0.23...
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 mL solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O,. The initial concentration of both the acid and the base are 0.0100 mol/ 0.1000 L...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago