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determine the mass of each of the following salts required to form a saturated solution in 250 g of water at 15°C
What type of bonding between amino acid residues is most important in holding a protein and polypeptide in a specific secondary configuration?
What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 20% when [ligand]
calculate the energy of a photon of light with a wavelength of 360nm.
at a temperature of 520 degrees C, the equilibrium concentration of HI is 0.80 M, of H2 is 0.010 M, and of I2 is 0.010 M. What is the K for the reaction?
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
Calculate the molar solubility of thallium chloride in 0.20M NaCl at 25 degrees Celcius. Ksp for TICl is 1.7 x 10 -4. What volume of 0.500 M HNO3 is needed to titrate 60.00 mL of 0.500 M Ca(OH)2 to the equivalence point?
A metal has crystallized with a face-centered cubic lattice. The edge of the unit cell is 366 pm. What is the diameter of the metal atom?
a coffee contains 100 mL of H2O. initial temperature of calorimeter is temperature 23 C.if 8.20 g of CaCl2 is added to calorimeter. what will be the final temperature of the solution in the calorimeter.
Calculate the kinetic energy of a K atom in the beam? b) Assuming that the molecules in the beam move one dimensionaly, what is the temperature of the beam?
How much heat is required to warm 1.40 kilograms of sand from 24.0 degrees Celsius to 100.0 degrees Celsius?
What is the ratio of the rate constants for this reaction when the temperature is decreased from °C to °C?
If 3.8kcal of energy is released when 1 gram of glucose is combusted, how many kcals are released when 0.689 moles of glucose are combusted
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