The acid HA has pKa = 7.00. (a) Which is the principal species, HA or A-, at

Question:

The acid HA has pKa = 7.00.
(a) Which is the principal species, HA or A-, at pH 6.00?
(b) Which is the principal species at pH 8.00?
(c) What is the quotient [A-]/[HA] at pH 7.00? at pH 6.00?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Quantitative Chemical Analysis

ISBN: 978-1429218153

8th edition

Authors: Daniel C. Harris

See More Books

Question Posted: Apr 19, 2016 09:48 AM

See More Questions

The diprotic acid H2A has pK1 = 4.00 and pK2 = 8.00. (a) At what pH is [H2A] = [HA-]? (b) At what pH is [HA-] = [A2-]? (c) Which is the principal species at pH 2.00: H2A, HA-, or A2-? (d) Which is...
The base B has pKb = 5.00. (a) What is the value of pKa for the acid BH+? (b) At what pH is [BH+] = [B]? (c) Which is the principal species at pH 7.00: B or BH+? (d) What is the quotient [B]/[BH+] at...
The acid HA has pKa = 4.00. Use Equations 9-17 and 9-18 to find the fraction in the form HA and the fraction in the form A- at pH = 5.00. Does your answer agree with what you expect for the quotient...
The number of claims filed each week with Security Insurance Company has a mean of 700 and a standard deviation of 250. Calculate the probability that the number of claims this week will be: (a)...
Meenen Corporation has the following accounts at December 31 (in euro.$): Share Capital-Ordinary, 10 par, 5,000 shares issued, 50,000; Share Premium-Ordinary 10,000; Retained Earnings 45,000; and...
Integral Healthcare System (IHS), a not-for-profit organization with a strong, service-oriented mission, is one of the largest care systems in its region. Although highly profitable, it has seen its...
Si su profesor encarga un plan de marketing a su grupo, no haga gestos ni se queje del trabajo por dos razones especiales. Primero, al tratar de hacer marketing real obtendr conocimientos que superan...
The Barnum Company acquired several small companies at the end of 2006 and, based on the acquisitions, reported the following intangibles in its December 31, 2006 balance sheet: Patent ...........
Management of a T - shirt manufacturer believes if the company applies lean principles, then cycle efficiency can be improved. The following are estimated completion times for different activities in...
Ben Paul is an accounting major at a western university located approximately 60 miles from a major city. Many of the students attending the university are from the metropolitan area and visit their...
(a)Using activity coefficients, calculate the pH of a solution containing a 2.00:1.00 mole ratio of HC2-:C3- (H3C = citric acid). The ionic strength is 0.010 M. (b) What will be the pH if the ionic...
A dibasic compound, B, has pKb1 = 4.00 and pKb2 = 6.00. Find the fraction in the form BH2 2+ at pH 7.00, using Equation 9 - 19. Note that K1 and K2 in Equation 9-19 are acid dissociation constants...
The default intensity is given as = 0.1 per period. The recovery rate is = 0.5. The risk-free rate of interest isr = 0.10 per period. Compute the price of a zero coupon bond with a maturity of two...
Consider: x3 + c (x 1)(x 3)(x + 1) (x + 3x + 9) (x + 2x + 5) How many partial fractions are there in the partial fraction decomposition of this function? How many unknowns (A, B, ...) must be...
Hand trace the following program. 1 y 0 2 for x in range (5): y = y + x 4 print ("x",x, "and y =", y) Note: You can shorten the prompts in your hand trace if you want to.
Determine the location using physics calculations to solve the problem. Show step by step details for how you solved the problem. I don't need an explanation explaining how to solve the problem. T By...
Give a brief explanation about the organization/company i.e., the products or services, number of employees, etc. Do a SWOT chart to help organize your ideas. Refer to resources in the reading for an...
How are organization "formal" and "informal" structures impacted in organizational change? Provide some examples. Compare and contrast Lewin's Change Model with Kotter's Change model. (Show how they...
Predict the relative solubility of each compound in the two solvents, on the basis of intermolecular attractions. (a) Is Br 2 more soluble in water or in carbon tetrachloride? (b)Is CaCl 2 more...
Explain how the graph of each function can be obtained from the graph of y = 1/x or y = 1/x 2 . Then graph f and give the (a) Domain (b) Range. Determine the largest open intervals of the domain over...
How do additives such as triethylamine reduce tailing of certain solutes?
To which kinds of analytes do these liquid chromatography detectors respond? (a) Ultraviolet (b) Refractive index (c) Evaporative light scattering (d) Charged aerosol (e) Electrochemical (f)...
A reversed-phase separation of a reaction mixture calls for isocratic elution with 48% methanol/52% water. If you want to change the procedure to use acetonitrile/water, what is a good starting...
Harper, Inc, acquires 40 percent of the outstanding voting stock of Kinman Company on January 1, 2020, for $316,100 in cash. The book value of Kinman's net assets on that date was $610.000, although...
Need a help for this! The following information is obtained from the records of Kaiser Company: On January 1, 2017 the following machines were acquired for cash: Production machines costs $ 6,000...
Book 51,500 Hint rint rences Raw Materials Inventory Debit Credit Beginning 10,100 Purchases 45,500 Available for use 55,600 DM used Ending 4,100 Work in Process Inventory Debit Credit Beginning...

The acid HA has pKa = 7.00. (a) Which is the principal species, HA or A-, at

Question:

Step by Step Answer:

a HA b A c PH pK a ...View the full answer

Quantitative Chemical Analysis

Students also viewed these Chemical Engineering questions