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In its crystalline form, hemoglobin has a spherical shape with a radius of 2.75 nm. In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
How would you write a balanced chemical equation using structural formulas to show how acetic acid reacts weakly with water to transfer a proton and produce a hydronium and an acidic ion?
Tripeptide Protein: Acidic, Basic, or Neutral? Alanine has an R-group structure of CH3, cysteine has an R-group structure of HS-CH2, and aspartic acid has an R-group structure of HOOC-CH2
Calculate the concentration of Cu2+ in a solution prepared by adding 4.9×10^?3mol of CuSO4 to 0.480L of 0.35M NH3.
Calculate the molar concentration of uncomplexed Zn2+ in a solution that contains 0.20 mole of Zn(NH3)42+ per liter and 0.0116 M NH3 at equilibrium.
Hydrogen and oxygen react under a specific set of conditions to produce water according to the following equation. 2 H2(g) + O2(g) -> 2 H2O(g)
When 2-propanol was used as the developing solvent, two substances moved with the solvent front (Rf = 1) during TLC analysis on a silica gel plate. Can you conclude that they are identical? If not, what additional experiment would you perform?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 67.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
Determine the pH of a solution prepared by adding 0.0500 mole of solid ammonium chloride to 100 mL of a 0.150-molar solution of ammonia.
The density of diamond is 3.51 g/cm . The international (but non-SI) unit for weighing diamonds is the "carat" (1 carat = 200 mg exactly.) What is volume of a 0.66 carat diamond?
A gaseous mixture of Oxygen(O2 )and Nitrogen(N2 )contains 40.8 grams N2(nitrogen) by mass then determine what is the partial pressure of O2(oxygen) in the mixture if the total pressure is given= 345 mmHg.
Determine the mass of the steel bar If the final temperature of the system reached to 21.0 degree celsius?
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