Question
Asked Oct 23, 2019
5 views

Describe how you would prepare a H2PO4- /HPO42- buffer solution with a pH of 7.40 from the sodium salts of both the H2PO4- and HPO42- ions.

H2PO4-(aq) +H2O(l) <--> HPO42-(aq) + H3O+(aq)

Ka = 6.2x10-8

check_circle

Expert Answer

Step 1

The objective is to prepare a phosphate buffer of 6.0 p...

4(ag):Ка, -6.9х10°3
+НРО?:
—нО ад)
(1)
нРО д(9)
+н,о
+н,РО
—но ая)
н, Роад "Н, О о
н.РОд(аф
+H,о
(I)
4ag) Ка -6.2x10-8
-РОЗ-
4(ag)Ка, — 4.8x10-13
НРО,
+HO
4(aq)
'(1)
—Н3 (ад)
+
help_outline

Image Transcriptionclose

4(ag):Ка, -6.9х10°3 +НРО?: —нО ад) (1) нРО д(9) +н,о +н,РО —но ая) н, Роад "Н, О о н.РОд(аф +H,о (I) 4ag) Ка -6.2x10-8 -РОЗ- 4(ag)Ка, — 4.8x10-13 НРО, +HO 4(aq) '(1) —Н3 (ад) +

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: A solution is prepared in which 0.00100 mol Ni(NO3)2and 0.500 mol NH3 are dissolved in a total volum...

A: The respective reaction is as follows,

question_answer

Q: A solution containing 572.0mL of 0.6300MHCl is diluted to a volume of 1.000L. What is the pH of this...

A: Click to see the answer

question_answer

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair conf...

A: The given conformation is drawn as two chair confirmations as,

question_answer

Q: Table 1. Crystal violet Concentration Test tube   10.0 x 10-6MCV(mL)  DistilledH2O (mL)  Concentrat...

A: The given table is:

question_answer

Q: predict the major product of the reaction sequence below

A: Hydroboration:Hydroboration is the addition of a hydrogen-boron bond to the Carbon-Carbon, Carbon-Ni...

question_answer

Q: Complete and balance each of the following equations for gas-evolution reactions. Part A HNO3(aq...

A: Complete and balance each of the following equations for gas-evolution reactions –HNO3 (aq) + Na2SO3...

question_answer

Q: A 0.4000 gram sample of a nickel ote is treated to dissolve the metal. The solution is made basic wi...

A: The balanced chemical reactions are given below.

question_answer

Q: There are four common oxoanions of bromine and two common oxoanions of sufur. Match the name of each...

A: The name of four oxoanions of bromine is given below.

question_answer

Q: 101819 v2 Layout References Mailings Review View EndNete X9 Updates Available Do you want to restart...

A: Dehydration reaction:Removal of water molecule from the reaction when the carboxylic acid is treated...