From the Kb values for phosphate below, calculate the three Ka values of phosphoric acid. Use the correct subscripts to K.
Similar to above, write the sequence of the three acid dissociation reactions starting with H3PO4. Show the matching K-expressions and Ka values next to each reaction.
Homework Answers
Add Answer to:
From the Kb values for phosphate below, calculate the
three Ka values of phosphoric acid. Use...
5. You have a 5.0 M solution of phosphoric acid, H3PO4 a. Write an equation three...
5. You have a 5.0 M solution of phosphoric acid, H3PO4 a. Write an equation three dissociation equations. b. As the species becomes more negative, the protons are more attracted to the species. What does this do to acid strength? C. Determine the concentration of all species in solution. Below are the needed ka values. • Ka, = 7.5 x 10-3 • Ka, = 6.2 x 10-8 • Ka, = 4.8 x 10-13 I MacBook 3013
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic...
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic acid solution to have a pH of 3.50, its molar concentration must be a. 5.7 x 10-3 M b. 5.6 x 10-3M c. 3.2 x 10-4M d. 2.3 x 10-M 13. If enough base is added to a solution to cause the pH to increase from 7.50 to 8.50, this means that А a. [OH-] increases by a factor of 10 b. [H'] increases...
(1) The Ka values for citric acid (2) and phosphoric acid (3) The exact concentration of the citr...
(1) The Ka values for citric acid (2) and phosphoric acid
(3) The exact concentration of the citric acid and (4)
phosphoric acid
Citric Acid Titration 12 10 2 40 60 20 80 volume NaOH (mL) Phosphoric acid Titration 12 r 10 ds 4 25 50 75 vol NaOH (mL)
Citric Acid Titration 12 10 2 40 60 20 80 volume NaOH (mL)
Phosphoric acid Titration 12 r 10 ds 4 25 50 75 vol NaOH (mL)
Determination of the Dissociation Constant ka, of a Weak Acid Part A Phosphoric acid is a...
Determination of the Dissociation Constant ka, of a Weak Acid Part A Phosphoric acid is a triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Kit = 75 x 10°,K6.2 x10, and K. = 4.2 x 10" 1. Write the chemical equation for the first ionization reaction of phosphoric acid with water. 2. Write the equilibrium constant expression Kat for this reaction. 3. What would be the pH of a solution when [H,PO) -(H.PO:] Part B...
the answer i have entered is incorrect Ksp = 1.0 x 10^-25 Ka = Phosphoric acid...
the answer i have entered is incorrect
Ksp = 1.0 x 10^-25
Ka =
Phosphoric acid
H3PO4
7.5×10-3
6.2×10-8
3.6×10-13
Write a balanced net ionic equation to show why the solubility of Ca3(PO4)2 (s) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid. Consider only the FIRST STEP in the reaction with strong acid. Use the pull-down boxes to specify states such as (aq) or (s)....
Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.34 M phosphoric acid solution is prep...
Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.34 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x -0.1) H3PO HO H.PO H3O Kai = 7.5c10-3 Preview Preview Preview H.PO H20 HPo? + H50+ K - 6.2:10 -* Preview Preview HPO H2O...
You are instrucbed to create 900. mL of a 0.59 M phosphate buffer with a pH...
You are instrucbed to create 900. mL of a 0.59 M phosphate buffer with a pH of 6.4. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. numerical answers to three significant H3PO4(s)H20)H3 aH2PO4(aq) H2PO4-(aq) + H2O(りーH3O + (aq) + HP042-(aq) Ka2-6.2×10-8 HPO()H20()H3)PO43 (aq) Ka 4.8x10-13 Ka 6.9x10-2 Which of the available chemicals will you use for the acid component of your buffer? O H3PO4 O Na2HPO Na3PO4 Which of the available chemicals will you use...
Calculate Kb for the acetate ion from the Ka for acetic acid of 1.80 x 10-5.
Calculate Kb for the acetate ion from the Ka for acetic acid of 1.80 x 10-5.
Acid/Base Study Packet Some Simple Acid/Base problems for you ... Calculate the pH of the following solutions: (Sho...
Acid/Base Study Packet Some Simple Acid/Base problems for you ... Calculate the pH of the following solutions: (Show ALL of your work) a. 2.3 x 10-2 M HNO3 b. 0.065 M Ba(OH)2 c. 2.55 M NaOH d. 0.025 M Naci e. 0.00086 M Al(OH)3 (assume 100% dissociation) f. 3.4 x 102 M acetic acid K= 1.8 x 10-5 g. 5.3 x 10-3 M formic acid K = 1.8 x 104 h. 4.6 x 10-4 M pyridine Kb = 1.9 x...
If you need Ka values, you should use this table: Use the References to access important...
If you need Ka values, you
should use this table:
Use the References to access important values if needed for this question. What is the pH of the buffer that results when 13.5 g of NaH2PO4 and 5.39 g of Na2HPO4 are diluted with water to a volume of 0.759 L? (Kof H2PO4 = 6.2E-8, the molar masses of NaH2PO4 and Na2HPO4 are 120.0 g/mol and 142.0 g/mol, respectively) 6.74 Oo oo O 6.81 O -6.74 O 7.21 O 7.68...
5. You have a 5.0 M solution of phosphoric acid, H3PO4 a. Write an equation three dissociation equations. b. As the species becomes more negative, the protons are more attracted to the species. What does this do to acid strength? C. Determine the concentration of all species in solution. Below are the needed ka values. • Ka, = 7.5 x 10-3 • Ka, = 6.2 x 10-8 • Ka, = 4.8 x 10-13 I MacBook 3013
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic acid solution to have a pH of 3.50, its molar concentration must be a. 5.7 x 10-3 M b. 5.6 x 10-3M c. 3.2 x 10-4M d. 2.3 x 10-M 13. If enough base is added to a solution to cause the pH to increase from 7.50 to 8.50, this means that А a. [OH-] increases by a factor of 10 b. [H'] increases...
(1) The Ka values for citric acid (2) and phosphoric acid
(3) The exact concentration of the citric acid and (4)
phosphoric acid
Citric Acid Titration 12 10 2 40 60 20 80 volume NaOH (mL) Phosphoric acid Titration 12 r 10 ds 4 25 50 75 vol NaOH (mL)
Citric Acid Titration 12 10 2 40 60 20 80 volume NaOH (mL)
Phosphoric acid Titration 12 r 10 ds 4 25 50 75 vol NaOH (mL)
Determination of the Dissociation Constant ka, of a Weak Acid Part A Phosphoric acid is a triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Kit = 75 x 10°,K6.2 x10, and K. = 4.2 x 10" 1. Write the chemical equation for the first ionization reaction of phosphoric acid with water. 2. Write the equilibrium constant expression Kat for this reaction. 3. What would be the pH of a solution when [H,PO) -(H.PO:] Part B...
the answer i have entered is incorrect
Ksp = 1.0 x 10^-25
Ka =
Phosphoric acid
H3PO4
7.5×10-3
6.2×10-8
3.6×10-13
Write a balanced net ionic equation to show why the solubility of Ca3(PO4)2 (s) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid. Consider only the FIRST STEP in the reaction with strong acid. Use the pull-down boxes to specify states such as (aq) or (s)....
Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.34 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x -0.1) H3PO HO H.PO H3O Kai = 7.5c10-3 Preview Preview Preview H.PO H20 HPo? + H50+ K - 6.2:10 -* Preview Preview HPO H2O...
You are instrucbed to create 900. mL of a 0.59 M phosphate buffer with a pH of 6.4. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. numerical answers to three significant H3PO4(s)H20)H3 aH2PO4(aq) H2PO4-(aq) + H2O(りーH3O + (aq) + HP042-(aq) Ka2-6.2×10-8 HPO()H20()H3)PO43 (aq) Ka 4.8x10-13 Ka 6.9x10-2 Which of the available chemicals will you use for the acid component of your buffer? O H3PO4 O Na2HPO Na3PO4 Which of the available chemicals will you use...
Acid/Base Study Packet Some Simple Acid/Base problems for you ... Calculate the pH of the following solutions: (Show ALL of your work) a. 2.3 x 10-2 M HNO3 b. 0.065 M Ba(OH)2 c. 2.55 M NaOH d. 0.025 M Naci e. 0.00086 M Al(OH)3 (assume 100% dissociation) f. 3.4 x 102 M acetic acid K= 1.8 x 10-5 g. 5.3 x 10-3 M formic acid K = 1.8 x 104 h. 4.6 x 10-4 M pyridine Kb = 1.9 x...
If you need Ka values, you
should use this table:
Use the References to access important values if needed for this question. What is the pH of the buffer that results when 13.5 g of NaH2PO4 and 5.39 g of Na2HPO4 are diluted with water to a volume of 0.759 L? (Kof H2PO4 = 6.2E-8, the molar masses of NaH2PO4 and Na2HPO4 are 120.0 g/mol and 142.0 g/mol, respectively) 6.74 Oo oo O 6.81 O -6.74 O 7.21 O 7.68...
Most questions answered within 3 hours.
-
Having conducted the ethics audit, identify the formal and
informal systems that are in need of...
asked 35 minutes ago -
1)a. Using the Born Haber cycle, determine the enthalpy for
lattice formation of MgO.
Mg (s),...
asked 1 hour ago -
6. The Bill of Rights (first 10 Amendments to the US
Constitution) consists of several limitations...
asked 57 minutes ago -
What are the ethical issue of using robotics in surgery ? List
the issues based on...
asked 1 hour ago -
URGENT
1. A person standing a certain distance from nine identical
loudspeakers is hearing a sound...
asked 1 hour ago -
If X1 ∼ χ21 and
X2 ∼ χ21 , then? show your
work.
(a) X1 + X2...
asked 1 hour ago -
a fair red die and a fair blue die are rolled. What is the
expected value...
asked 2 hours ago -
How many unpaired electrons would you expect for the complex ion
[FeF6]4-?
0
2
6
3...
asked 2 hours ago -
please briefly explain your idea about the following
paragraph.
Genetic engineering is a process of modifying...
asked 2 hours ago -
When a piece of wood is pressed against a spring and compresses
the spring by 2.00...
asked 2 hours ago -
Organizations that interact with medical patients are subject to
HIPAA compliance.
a. Briefly describe, in your...
asked 4 hours ago -
1. A sociologist examines the relationship between the poverty
rate and several socioeconomic factors. For the...
asked 5 hours ago