Many biochemical reactions that occur in cells requirerelatively high concentrations of potassium ion (K + ) . Theconcentration of K + in muscle cells is about 0.15 M . Theconcentration of K + in blood plasma is about 0.0050 M .The high internal concentration in cells is maintained bypumping K + from the plasma. How much work must bedone to transport 1.0 mole of K + from the blood to theinside of a muscle cell at 37°C (normal body temperature)?When 1.0 mole of K + is transferred from blood tothe cells, do any other ions have to be transported? Whyor why not? Much of the ATP (see Exercise 84) formedfrom metabolic processes is used to provide energy fortransport of cellular components. How much ATP mustbe hydrolyzed to provide the energy for the transport of1.0 mole of K + ?
Many biochemical reactions that occur in cells requirerelatively high concentrations of potassium ion (K + ) . Theconcentration of K + in muscle cells is about 0.15 M . Theconcentration of K + in blood plasma is about 0.0050 M .The high internal concentration in cells is maintained bypumping K + from the plasma. How much work must bedone to transport 1.0 mole of K + from the blood to theinside of a muscle cell at 37°C (normal body temperature)?When 1.0 mole of K + is transferred from blood tothe cells, do any other ions have to be transported? Whyor why not? Much of the ATP (see Exercise 84) formedfrom metabolic processes is used to provide energy fortransport of cellular components. How much ATP mustbe hydrolyzed to provide the energy for the transport of1.0 mole of K + ?
Solution Summary: The author explains the relation between change in Gibbs free energy and equilibrium constant.
Many biochemical reactions that occur in cells requirerelatively high concentrations of potassium ion
(K
+
)
. Theconcentration of
K
+
in muscle cells is about 0.15 M. Theconcentration of
K
+
in blood plasma is about 0.0050 M.The high internal concentration in cells is maintained bypumping
K
+
from the plasma. How much work must bedone to transport 1.0 mole of
K
+
from the blood to theinside of a muscle cell at 37°C (normal body temperature)?When 1.0 mole of
K
+
is transferred from blood tothe cells, do any other ions have to be transported? Whyor why not? Much of the ATP (see Exercise 84) formedfrom metabolic processes is used to provide energy fortransport of cellular components. How much ATP mustbe hydrolyzed to provide the energy for the transport of1.0 mole of
K
+
?
Chemical pathways by which living things function, especially those that provide cellular energy, such as the transformation of energy from food into the energy of ATP. Metabolism also focuses on chemical pathways involving the synthesis of new biomolecules and the elimination of waste.
Using the Nernst equation to calculate nonstandard cell voltage
A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction:
MnO2 (s)+4H* (aq)+2Cr²+ (aq) → Mn²+ (aq)+2H₂O (1)+2Cr³+ (aq)
+
2+
2+
3+
Suppose the cell is prepared with 7.44 M H* and 0.485 M Cr²+ in one half-cell and 7.92 M Mn² and 3.73 M Cr³+ in the other.
Calculate the cell voltage under these conditions. Round your answer to 3 significant digits.
☐
x10
μ
Х
5
?
000
日。
Calculating standard reaction free energy from standard reduction...
Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG° for the following redox reaction.
Be sure your answer has the correct number of significant digits.
NO (g) +H₂O (1) + Cu²+ (aq) → HNO₂ (aq) +H* (aq)+Cu* (aq)
kJ
-
☐ x10
x10
olo
18
Ar
Calculating the pH of a weak base titrated with a strong acid
b
An analytical chemist is titrating 116.9 mL of a 0.7700M solution of aniline (C6H5NH2) with a 0.5300M solution of HNO3. The pK of aniline is 9.37.
Calculate the pH of the base solution after the chemist has added 184.2 mL of the HNO 3 solution to it.
Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added.
Round your answer to 2 decimal places.
pH = ☐
☑
5
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.
The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY