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The potassium-ion concentration in blood plasma is about 5.0 X 10-3M, whereas the concentration in muscle-cell fluid is much greater (0.15 M). The plasma and intracellular fluid are separated by the cell membrane, which we assume is permeable only to K+.
(a)What is ?G for the transfer of 1 mol of K+ from blood plasma to the cellular fluid at body temperature 37 °C?
(b) What is the minimum amount of work that must be used to transfer this K+?
Determine the vapor pressure lowering, at 27 Celsius, of a solution of 75.0 grams of sucrose, C12H22O11, dissolved in 180 grams of water. the vapor pressure of pure water at 27 celsius is 26.7 torr. assume the solution is ideal.
A sample of carbon dioxide, CO2 gas has a volume of 364mL at a pressure of 2.45 atm as well as a temperature of 100oC. Explain what is the pressure of this same sample in atmospheres at a temperature of 225oC and a volume of 452mL
sketch the corresponding Gibbs free energy curve showing all phases that appear on the sketch. Indicate the equilibrium phase compositions.
Balance each of the following equations. Classify each reaction as combination, decomposition, single-displacement, or double-displacement.
Transesterification of a certain triglyceride produced one molecule of methyl oleate and two molecules of methyl linoleate. Draw the original triglyceride.
How many grams of hydrogen gas are produced upon complete reaction of 4.6 moles of sodium with water? What assumption must you make concerning the water? Sodium oxide is the other product.
Calculate the entropy change for vaporization of 18g of H2O? The molar enthalpy of vaporization for water is 44 kj/mol and the boiling point is 100 degrees celsius
1. your expense account allows you to spend $80.00 a day when you are on a trip. If you have a week-long trip to tiny country of Kratvia, where the exchange rate is 3.50 kratvels per dollar, how many kratvels can you spend during the week? (7 ..
Draw the Lewis structure of tartaric and malic acids in a way that shows the geometry of the acid functional groups. Indicate the hybridization of each carbon
A buffer is prepared by mising 204mL of 0.452M HCl and 0.500l of 0.400M sodium acetate Ka=1.8x10^-5 a) what is the pH, b) how many grams of KOH must be added to 0.500l of buffer to change the PH by 0.15units
Problem- Draw a lewis structure for each of the following species, again, assign charges where appropriate. A.) H- B.) CH3- C.) CH3+ D.) CH3 E.) CH3NH3+ F.) CH3O- G.) CH2 H.) HC2- I.) H2O2
A buffer that contains 0.511 M of a base, B and 0.897 M of its conjugate acid BH+, has a pH of 9.79. What is the pH after 0.00514 mol of HCl are added to 0.593 L of the solution
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