Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
Ammonium acetate buffer is used as an important reagent for studying molecular biology, biological buffers, reagents and DNA and RNA purification. Ammonium acetate (0.24M) in combination with cold 66% (v/v) ethanol quantitatively precipitated RNA from very dilute solutions (greater than or equal to μg/ml) after centrifugation.
Ammonium acetate (CH3COONH4) is also a salt of weak acid (CH3COOH) and weak base (NH4OH). The Ka and Kb are equal to 1.8 x10-5. The pH of this salt solution will be,
| a. |
pH > 7 |
|
| b. |
pH ≈ 7 |
|
| c. |
pH < 7 |
|
| d. |
both cation and anion don’t hydrolyze. |
|
| e. |
none of the above. |
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- How many grams of Ag2CO3 will be soluble in 250 ml of 0.180 M AgNO3? (Ksp of Ag2CO3 = 5.95 x 10-10)arrow_forwardset to standardize a solution of Mg(OH)2 with potassium hydrogen phthalate (KHP, M.W. = 204.22 g/mole): 2 KHPlaq) + Mg(OH)2/ag) = K2Plaq) + MPlaq) + 2 H2010 If 2.456 g KHP are dissolved in 50.0 mL H2O and the following burette readings for Mg(OH)2 are used what is the concentration of Mg(OH)2? Vinitial = 9.85 mL and Vinal = 34.94 mLarrow_forwardMake oleic acid vesicles by making a solution of 0.5mL of 50mM oleic acid, 1 mM HPTS in 0.2 M Tris-HCl, 50 mM NaCl, pH 8.5 (i.e. buffer A) in a microcentrifuge tube in the following order. How much HPTS should you add? How much oleic acid?arrow_forward
- P Chemical eg X P Chemical eq X P Chemical ec X P Chemical ec X P Chemical ec x P Chemi View?assignmentProblemlD=144082837&offset%3Dnext CHE154-H Gen Chem II Bronikowski S20 Part A sp Use the molar solubility, 1.08 × 10-5 M, in pure water to calculate K, for BaCrO4. Express your answer using three significant figures. . ΑΣφ Ksparrow_forwardA solution of Na2SO4 is added dropwise to a solution thatis 0.010 M in Ba2+(aq) and 0.010 M in Sr2+(aq). (a) Whatconcentration of SO42 - is necessary to begin precipitation?(Neglect volume changes. BaSO4: Ksp = 1.1 x 10-10; SrSO4:Ksp = 3.2 x 10-7.) (b) Which cation precipitates first?(c) What is the concentration of SO42- (aq) when the secondcation begins to precipitate?arrow_forwardQuestion 25 of 30 Submit 300.0 mL of a 0.300 M solution of Nal is diluted to 700.0 mL. What is the new concentration of the solution? | M 1 4 6. C 7 +/- x 10 0 Tap here or pull up for additional resources 3. LO 00arrow_forward
- Nitesharrow_forwardConsider the following reactions: CaSO4(s) Ca²+ + SO4²- CaF2(s) Ca²+ + 2F- Kso=10-4.59 Kso-10-10.3 a) What is the solubility of CaSO4(s) in water at 25 °C? b) What is the solubility of CaF2(s) in water at 25 °C? c) Will either of these two solids will precipitate if [F-]=104 M, [SO4²-]=103³ M and [Ca²+]=10-² M?arrow_forward1-Why does silver chloride precipitate before silver chromate in mohr's mathod ? 1:45 PM /arrow_forward
- Find out the molarity of an old KOH solutionYou measure 1.456 g of KHP (MW=204.22 g/mole) dissolve it in 50.0 of H20 add an indicator and begin to titrate with the old KOH KHP (aq) +KOH (aq) =K2P (aq) +H2O (l) the initial and volume burette readings are 1.35 mL & 24.3 mL then what is the concentration of KOH ?arrow_forwardWhat is the molar solubility of calcium fluoride (Ksp = 3.9 10) when dissolved in 150 mL in 0.0283 M NaF? Report your answer in scientific notation to two significant figures (for example: 0 0012 can be entered as 1 2E-3) Do not input a unit! eA Moving to another question will save this response.arrow_forwardThe aqueous solubility of AgOCN at 20°C is 7.00 mg/100mL. What is the Ksp of AgOCN at 20°C?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning 
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY