1) According to the Henderson-Hasselbalch equation shown below, what equilibrium is established for the given acid/base...
1) According to the Henderson-Hasselbalch equation shown below, what equilibrium is established for the given acid/base reaction if a) pH = pKa +1, and b) pH = pKa - 2 ? Please show your calculation.
Homework Answers
![Saln Handeson oselbalh ca says inat e Sos LHAコ IhCe じ A] log [A-] CHA7 Anti log (1): LAT了 CHAD leg -CA寸- CMAJ 10 Mate thac fo](http://img.homeworklib.com/questions/4a5ce470-c711-11ea-b435-1fdd1b828d02.png?x-oss-process=image/resize,w_560)
Add Answer to:
1) According to the Henderson-Hasselbalch equation shown below,
what equilibrium is established for the given acid/base...
1. Calculation: Using the Henderson-Hasselbalch equation, explain mathematically why a solution is at a pH below...
1. Calculation: Using the Henderson-Hasselbalch equation, explain mathematically why a solution is at a pH below the pKa for an acid that more than 50% of the molecules have the proton on (not off). 2. Calculation: If you have a pH of 5.5 for a weak acid with a pKa of 4.76, then is there more A- or more HA in the solution? Explain why in words using your knowledge of positive or negative log numbers.
The pH of a buffer is calculated by using the Henderson-Hasselbalch equation: pH=pKa +log[Base]/[Acid] Part A: What...
The pH of a buffer is calculated by using the Henderson-Hasselbalch equation: pH=pKa +log[Base]/[Acid] Part A: What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.406mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66
Need help on questions 1-3 Henderson-Hasselbalch: pH=pka + Log( [base]/(acid] ) 1. The value of Ka...
Need help on questions 1-3
Henderson-Hasselbalch: pH=pka + Log( [base]/(acid] ) 1. The value of Ka of nitrous acid (HNO2) is 4.6 x 104 M. Calculate the pH and the concentration of [H3O+] in a 0.02M aqueous solution of HNO2(aq). 2. Label conjugate acid-base pairs: HNO2(aq) + H2O → H30* + NO2 (aq) 3. What will happen to the reaction equilibrium if we increase the pressure in the reaction vessel? H2(g) + 12(e) → 2 HI(g)
According to the Henderson–Hasselbalch equation, when the pH of a solution of histidine is 1.85, what...
According to the Henderson–Hasselbalch equation, when the pH of a solution of histidine is 1.85, what is the ratio of the carboxylic acid form of the molecule to its conjugate base (the carboxylate form)? [For practice, either use Marvin Sketch or a piece of paper to draw the acid and conjugate base.] 1 or 4?
Use the Henderson Hasselbalch equation to calculate the volume in mls of a) Tris acid and...
Use the Henderson Hasselbalch equation to calculate the volume in mls of a) Tris acid and b) Tris base to use to make 250 ml of a 0.01M Tris buffer, pH 8.0, from 0.01M stock solutions. Give your answer to one place of decimals. pKa Tris = 8.3.
Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pka = 4.874) using HA, A-, and...
Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pka = 4.874) using HA, A-, and the given Pka value in the expression. Using this equation, calculate the quotient (A]/[HA] at A) pH 4.23 B) pH 4.874 C) pH 530.
Topic: pH and Ka Value Note: y-intercept = 8.46 Henderson-Hasselbalch equation : pH = pKa +...
Topic: pH and Ka Value
Note:
y-intercept = 8.46
Henderson-Hasselbalch equation : pH = pKa +
log[A-/HA]
Literature value of pKa = 9.245
Question: Use Henderson-Hasselbalch equation
and y-intercept to determine the Ka
value for the acid in the conjugate pair (NH3
and NH4Cl). Show your work.
The Henderson-Hasselbalch equation connects pH to pk, by relating pH to the relative amounts of the...
The Henderson-Hasselbalch equation connects pH to pk, by relating pH to the relative amounts of the acid and conjugate base. The equation is: [A], pH = pKa + log [HA]' A. If you had an acetic acid solution at pH 4.75, what would the ratio of acetic acid to acetate 4. be? (Сн,соо у сн, соон) - ([CH3CO0¯], [CH3COOH], B. What if the solution pH was 4.27? C. What about pH 5.05?
Use the Henderson-Hasselbalch equation to determine the ratio of acid to base in a formic acid-formate...
Use the Henderson-Hasselbalch equation to determine the ratio of acid to base in a formic acid-formate buffer with a pH of 3.00 Assume that the human blood buffer includes 0.00080 M carbonic acid and 0.0080 M hydrogen carbonate. What is the pH of 7.00 liter of blood under these conditions? How many moles of strong acid must be added to the blood in question 2 to bring the hydrogen carbonate/ carbonic acid ratio to the hazardous level of 5:1 AND...
The variable component of the Henderson-Hasselbalch equation relates the pH of a solution to: Select one:...
The variable component of the Henderson-Hasselbalch equation relates the pH of a solution to: Select one: a. The equilibrium constant of the weak acid. b. The inverse of the pOH. c. The log ratio of [dissociated form]/[acid]. d. The weak acid's pKa (This option ws wrong)
Need help on questions 1-3
Henderson-Hasselbalch: pH=pka + Log( [base]/(acid] ) 1. The value of Ka of nitrous acid (HNO2) is 4.6 x 104 M. Calculate the pH and the concentration of [H3O+] in a 0.02M aqueous solution of HNO2(aq). 2. Label conjugate acid-base pairs: HNO2(aq) + H2O → H30* + NO2 (aq) 3. What will happen to the reaction equilibrium if we increase the pressure in the reaction vessel? H2(g) + 12(e) → 2 HI(g)
Write the Henderson-Hasselbalch equation for a solution of propanoic acid (CH3CH2CO2H, pka = 4.874) using HA, A-, and the given Pka value in the expression. Using this equation, calculate the quotient (A]/[HA] at A) pH 4.23 B) pH 4.874 C) pH 530.
Topic: pH and Ka Value
Note:
y-intercept = 8.46
Henderson-Hasselbalch equation : pH = pKa +
log[A-/HA]
Literature value of pKa = 9.245
Question: Use Henderson-Hasselbalch equation
and y-intercept to determine the Ka
value for the acid in the conjugate pair (NH3
and NH4Cl). Show your work.
The Henderson-Hasselbalch equation connects pH to pk, by relating pH to the relative amounts of the acid and conjugate base. The equation is: [A], pH = pKa + log [HA]' A. If you had an acetic acid solution at pH 4.75, what would the ratio of acetic acid to acetate 4. be? (Сн,соо у сн, соон) - ([CH3CO0¯], [CH3COOH], B. What if the solution pH was 4.27? C. What about pH 5.05?
Most questions answered within 3 hours.
-
An infinite sheet of charge that has a surface charge density of
39 nC/m2 lies in...
asked 36 minutes ago -
After watching the lectures I am still having a hard time
understanding these equations.
1. The...
asked 1 hour ago -
Testing:
H0:μ=56.9
H1:μ<56.9
Your sample consists of 23 subjects, with a mean of 56.3 and
standard...
asked 1 hour ago -
straight wire, labeled as Wire A, lies horizontally on a
tabletop and is oriented to run...
asked 1 hour ago -
For a Chi-Squared Goodness of Fit Test about a uniform
distribution, complete the table.
Round to...
asked 2 hours ago -
Milk of magnesia is only slightly soluble in water. Kc for the
reaction Mg(OHs)(s)>Mg2+(a) + 2OH-1(aq)...
asked 2 hours ago -
Excel's HYPGEOM.DIST function can be used to compute _____.
a. both hypergeometric probabilities and cumulative
hypergeometric...
asked 2 hours ago -
The rocket used for the human lunar missions was the Saturn V
rocket. At liftoff the...
asked 2 hours ago -
1. The East Street Bagel Shop has a weekly demand for 3,500
bagels, which they make...
asked 2 hours ago -
paraphrasing each paragraph
“Where two or more persons knowingly act together unlawfully,
the act of each...
asked 2 hours ago -
The lateral line system in fish is contained which of the
following?
chemoreceptors
photoreceptors
mechanoreceptors
odor...
asked 2 hours ago -
Find the y-intercept of y =-5 x. The y-intercept of y equals
negative 5 x is______...
asked 2 hours ago