In the study of biochemical processes, a common buffering agent is the weak base trishydroxymethylaminomethane, (HOCH₂)3 CNH2, often abbreviated as Tris. At 25 °C, Tris has a PKL of 5.91. The hydrochloride of Tris is (HOCH₂)3 CNH3C1, which can be abbreviated as TrisHCI. Part A What volume of 10.0 mol L-¹ NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCI? Express your answer in millilitres to two significant figures. ▸ View Available Hint(s) 10 Π| ΑΣΦ Submit 3 Previous Answers → O Part B Complete previous part(s) Part C Complete previous part(s) < Return to Assignment X Incorrect; Try Again; 4 attempts remaining ? Provide Feedback mL

In the study of biochemical processes, a common buffering agent is the weak base trishydroxymethylaminomethane, (HOCH₂)3 CNH2, often abbreviated as Tris. At 25 °C, Tris has a PKL of 5.91. The hydrochloride of Tris is (HOCH₂)3 CNH3C1, which can be abbreviated as TrisHCI. Part A What volume of 10.0 mol L-¹ NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCI? Express your answer in millilitres to two significant figures. ▸ View Available Hint(s) 10 Π| ΑΣΦ Submit 3 Previous Answers → O Part B Complete previous part(s) Part C Complete previous part(s) < Return to Assignment X Incorrect; Try Again; 4 attempts remaining ? Provide Feedback mL

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

The mass of K3PO4 needed to prepare 250.0mL of an aqueous solution in which PO4-3 concentration is 0.0550M. The answer is ……………………… 6
Please don't provide handwritten solution......
(please type answer not write by hend)
For letter b, mass percent of water is to be computed. Will you be able to resolve this part? These are the questions to be determined. b.) - mass of solute = ? g - mass of solvent = ? g - mass percent of water = ? %
To prepare 50 mL solutions of 0.01 M KMnO4 in water (calculation to prepare chemicals in spectrophotometer)
Foreattt part of iTIS qtestfoni; tonsider FOHOWIHg Btetat: You need to make a stock solution of Ca( C2H3O2 )2 with a concentration of 6.50 M. You have a 850.0 mL volumetric flask available to make this stock solution in. You are then tasked with using this stock solution to prepare a sample for use in an experiment. The experimental sample should have a final volume of 15.0 mL and a concentration of 0.350 M Ca(C2H3O2)2. a) What is the molar mass of Ca(C2H3O2)2? b) How many moles of the solute would be needed to create the stock solution using the volumetric flask available? c) How many grams of the solute should be added to the volumetric flask to create the stock solution? d) What volume, in mL, of the stock solution should be used to prepare the experimental solution through dilution? US 目 M
3. You are to prepare 2 L of a 15% neomycin solution; you have on hand a 25% solution. How much stock and how much water do you need? I. 4. A pediatrician on staff at your institution has required a certain antibiotic to be mixed in white petrolatum to produce a 25% antibiotic preparation. A new pediatrician is now the chief of the department and changes the protocol to be only 12.5%. How much white petrolatum must be mixed with each 4-oz ointment jar of the 25% preparation to make the new 12.5% preparation?
What must be present in an aqueous solution for it to conductan electric current? What general classes of compounds form so-lutions that conduct?
Masses : Ca = 40.08 g S= 32.07 g O= 16.00 g A 35.0 mL sample of CaSO4 was evaporated to dryness, leaving 0.967 g of residue. What was the molarity of the original solution? step by step please
FAFSA® Applicatio. NG www.cfnc.org | 520.. NC Residency Deter. + Scholarships - Goo.. wh ccsf E Read [References] Use the References to access important values if needed for this question. In the laboratory, a student dilutes 26.6 mL of a 11.7 M nitric acid solution to a total volume of 200.0 mL. What is the concentration of the diluted solution? Concentration = M Submit Answer Try Another Version 1 item attempt remaining
May I ask if you could write the solution in a paper? Thank you!
w..... Q3-A) What is the difference between quality and quantity? B) How many grams of Na:CO: to prepare solution its volume 1.7 liter and 0.2 M ?