The acid ionization constant of H A is to be calculated. Concept Introduction: The ratio between mass and volume is called density. It is calculated as follows: D e n s i t y = M a s s V o l u m e . Rearrange the density equation for mass as follows: M a s s = D e n s i t y × V o l u m e . The number of moles is calculated as follows: n = Weight ( g ) Gram molecular weight ; n = mass of HA molecular mass of HA . The ideal gas equation is as follows: P V = n R T . P V = Mass of HA Molecular mass of HA R T ; Molecular mass of HA = Mass of HA P V R T ; Molecular mass of HA = Density × Volume P V R T . Here, V is the volume, n is the number of moles, R is the universal gas constant, P is the pressure of the gas, and T is the temperature of the gas. An ideal gas can be characterized by three state variables, namely, absolute pressure ( P ) , volume, and absolute temperature ( T ) . The relation between them that may be reduced from kinetic theory is called the ideal gas equation.
The acid ionization constant of H A is to be calculated. Concept Introduction: The ratio between mass and volume is called density. It is calculated as follows: D e n s i t y = M a s s V o l u m e . Rearrange the density equation for mass as follows: M a s s = D e n s i t y × V o l u m e . The number of moles is calculated as follows: n = Weight ( g ) Gram molecular weight ; n = mass of HA molecular mass of HA . The ideal gas equation is as follows: P V = n R T . P V = Mass of HA Molecular mass of HA R T ; Molecular mass of HA = Mass of HA P V R T ; Molecular mass of HA = Density × Volume P V R T . Here, V is the volume, n is the number of moles, R is the universal gas constant, P is the pressure of the gas, and T is the temperature of the gas. An ideal gas can be characterized by three state variables, namely, absolute pressure ( P ) , volume, and absolute temperature ( T ) . The relation between them that may be reduced from kinetic theory is called the ideal gas equation.
Solution Summary: The author explains that the acid ionization constant of HA is to be calculated. The ratio between mass and volume is called density.
The acid ionization constant of HA is to be calculated.
Concept Introduction:
The ratio between mass and volume is called density. It is calculated as follows:
Density=MassVolume.
Rearrange the density equation for mass as follows:
Mass=Density×Volume.
The number of moles is calculated as follows:
n=Weight(g)Gram molecular weight;
n=massofHAmolecularmassofHA.
The ideal gas equation is as follows:
PV=nRT.
PV=MassofHAMolecularmassofHART;
MolecularmassofHA=MassofHAPVRT;
MolecularmassofHA=Density×VolumePVRT.
Here, V is the volume, n is the number of moles, R is the universal gas constant, P is the pressure of the gas, and T is the temperature of the gas.
An ideal gas can be characterized by three state variables, namely, absolute pressure (P), volume, and absolute temperature (T). The relation between them that may be reduced from kinetic theory is called the ideal gas equation.
A small artisanal cheesemaker is testing the acidity of their milk
before it coagulates. During fermentation, bacteria produce lactic
acid (K₁ = 1.4 x 104), a weak acid that helps to curdle the milk and
develop flavor. The cheesemaker has measured that the developing
mixture contains lactic acid at an initial concentration of 0.025 M.
Your task is to calculate the pH of this mixture and determine whether
it meets the required acidity for proper cheese development. To
achieve the best flavor, texture and reduce/control microbial growth,
the pH range needs to be between pH 4.6 and 5.0.
Assumptions:
Lactic acid is a monoprotic acid
H
H
:0:0:
H-C-C
H
:0:
O-H
Figure 1: Lewis Structure for Lactic Acid
For simplicity, you can use the generic formula HA to represent the acid
You can assume lactic acid dissociation is in water as milk is mostly water.
Temperature is 25°C
1. Write the K, expression for the dissociation of lactic acid in the space provided. Do not forget to
include state symbols.…
Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product
structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s).
Be sure to account for all bond-breaking and bond-making steps.
:0:
:0
H.
0:0
:0:
:6:
S:
:0:
Select to Edit Arrows
::0
Select to Edit Arrows
H
:0:
H
:CI:
Rotation
Select to Edit Arrows
H.
<
:0:
:0:
:0:
S:
3:48 PM Fri Apr 4
K
Problem 4 of 10
Submit
Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product
structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s).
Be sure to account for all bond-breaking and bond-making steps.
Mg.
:0:
Select to Add Arrows
:0:
:Br:
Mg
:0:
:0:
Select to Add Arrows
Mg.
Br:
:0:
0:0-
Br
-190
H
0:0
Select to Add Arrows
Select to Add Arrows
neutralizing workup
H
CH3
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell