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What is the mechanism of action and clinical indications for the use of statins, considering age, ethnicity, and economic factors?
The ground water in Pherric, New Mexico contains 1.80 mg/L of iron as Fe+3. What pH is required to precipitate all but 0.30 mg/L of the iron as Fe(OH)3 at 25oC?
Explain the physical interactions of the molecules that lead to proteins falling out of solution in high salt. What is the driving force of protein precipitation?
A reaction has a standard free-energy change of -14.40 kJ mol-1 (-3.442 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
must be added to obtain iced tea at 11.5 C? The specific heat of the tea is 4.18 J/(g*C), and delta H for ice is +6.01 KJ/mol.
oleci acid has following compostions : 76.54%C, 12.13%H, 11.33% O. If the experimental molar mass is 282.g/mol, what is the molecular formula of oleic acid?
Problem- We learned that iron pipes can form rust very easily. In the initial reaction, iron metal interacts with O2 and H?+ to form an iron cation and water.
If 2.50 g of glucose (C6H12O6) are dissolved in 1.00 x 102 mL of solution, calculate the molarity of the glucose solution.
Problem- Determine the concentrations of each zinc-containing species in a solution saturated with solid Zn(OH)2 and having a fixed OH- concentration of 3.7 x 10-7 M. The equilibrium constants for the equilibria that occur in the solution follow:
Question- A gas at a temperature of 85 degrees C occupies a volume of 175 mL. Assuming constant pressure, determine the volume at 15 degrees C
Question- Consider 0.10 M solutions of the following substances. Rank the solutions in order of increasing pH where 1 is the solution with the lowest pH and 7 is the solution with the highest pH.
In another experiment it was determined that for each mole of hydrocarbon, 7 moles of oxygen gas are consumed and 5 moles of CO2 gas and 3 moles of H2O liquid are produced. Find ?H per mole of this hydrocarbon (in kJ) at 298 K
Which of the following mixtures has the lower pH. A) Equal volumes of 0.10M HClO4 and 0.10M NaOH. B) Equal volumes of 0.10M HClO4 and 0.10M NH3.
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