A microbiologist is preparing a medium on which to culture E. Coli bacteria. She uses 1.5M...
A microbiologist is preparing a medium on which to culture E.
Coli bacteria. She uses 1.5M Na2HPO4 and 1.5M KH2PO4 as her
conjugate acid/base pair. She buffers the medium at a pH of 7.00 to
minimize the effect of acid-producing fermentation. She uses 75mL
of the H2PO4-, how many mL of the HPO42- must be added. The Ka is
6.3x10-8.
Homework Answers
![(Nag HPO4] = [HPL ] = 1.5M [KH₂ PO 4 ] = [hq PQ ] = 1,5M - Leacid weak a cid Į H₂ pou - How the } - Rideia Buffer случаһ воли](http://img.homeworklib.com/questions/79c27980-70af-11ea-b46b-b1b8b7b4e2e1.png?x-oss-process=image/resize,w_560)
Add Answer to:
A microbiologist is preparing a medium on which to culture E.
Coli bacteria. She uses 1.5M...
A microbiologist is preparing a medium on which to culture E. Colibacteria. She uses 1.0M K2HPO4...
A microbiologist is preparing a medium on which to culture E. Colibacteria. She uses 1.0M K2HPO4 and 1.0M KH2PO4 as her conjugate acid/base pair. She buffers the medium at a pH of 7.00 to minimize the effect of acid-producing fermentation. She uses 50mL of the H2PO4-, how many mL of the HPO42- must be added. The Ka is 6.3x10-8.
A microbiologist is preparing a medium on which to culture E. coli bacteria. She buffers the medium at pH 7.00 to minimi...
A microbiologist is preparing a medium on which to culture E. coli bacteria. She buffers the medium at pH 7.00 to minimize the effect of acid-producing fermentation. What volumes of equimolar aqueous solutions of K2HPO4 and KH2PO4 must she combine to make 750.0 mL of the pH 7.00 buffer? Ka values for phosphoric acid: Ka1 = 7.2 ×10−3 Ka2 = 6.3 ×10−8 Ka3 = 4.2 × 10−13 Volume H2PO4− = ??? mL Volume HPO42− = ??? mL
Cabrillo College Chemistry 1B Buffer Problem Set 1. A desires study the effect of pH n...
Cabrillo College Chemistry 1B Buffer Problem Set 1. A desires study the effect of pH n the growth of E. coli bacteria. She plans to do the research by preparing culture media that are buffered at three distinctly different PH values. Therefore, she decides to use the triprotic phosphoric acid (H,PO), potassium dihydrogen hydrogen phosphate o") and potassiam phosphate POe) to prepare the buffers K-1 7.11 103 Ka- 6.32 x 10" Kal 7.11 x 10 MATERIALSAFALLABLE Standardized solutions: 1.00 MH3PO,...
Cabrillo College Chemistry 1B Buffer Problem Set 1. A desires study the effect of pH n the growth of E. coli bacteria. She plans to do the research by preparing culture media that are buffered at three distinctly different PH values. Therefore, she decides to use the triprotic phosphoric acid (H,PO), potassium dihydrogen hydrogen phosphate o") and potassiam phosphate POe) to prepare the buffers K-1 7.11 103 Ka- 6.32 x 10" Kal 7.11 x 10 MATERIALSAFALLABLE Standardized solutions: 1.00 MH3PO,...
Most questions answered within 3 hours.
-
R2.84: There are 2 defective products in a production lot of 10.
An inspector randomly selected...
asked 1 hour ago -
Consider the following equilibrium system: COCl2(g) CO(g) +
Cl2(g) A 10.00 L evacuated flask is filled...
asked 1 hour ago -
1) What are the two distinct steps that one needs to perform
when developing a data...
asked 1 hour ago -
2) Write a C++ program that uses a class called “Degree” to
obtain the trigonometric
values...
asked 2 hours ago -
1. In eukaryotic cells the genomes of
&
asked 2 hours ago -
The standard enthalpy of propanol (C3H7OH) is -303.0 kJ/mol.
Compute both of the
gross and net...
asked 2 hours ago -
Why PWM using H-bridge for control motor speed is more power
effiecient than the linear amplifier...
asked 3 hours ago -
In 1999, Carly Fiorina famously said,"I hope that we are at a
point that everyone is...
asked 3 hours ago -
Individuals in a species of moth vary in wing color from white to
black, but all...
asked 3 hours ago -
The following standards for variable manufacturing overhead have
been established for a company that makes only...
asked 3 hours ago -
The United States government wanted to determine what proportion
of Americans approve of the current president,...
asked 3 hours ago -
2-N stone is dropped from the top of a cliff. The stone hits the
ground 3...
asked 3 hours ago