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Calculate the change in entropy when 5.0g of water at 75.2 degrees Celsius is converted to ice at -5.5 degrees Celsius. During the process the pressure remains constant at 1.00 atm. The constant pressure heat capacities are 75.3 J/mol K (solid and liquid) and 33.6 J/mol K (gas). The enthalpies of fusion and vaporization are 6.01 and 44.0 kJ/mol, respectively.
The following osmotic pressures were observed for bovine serum albumin (BSA) in 0.15 M NaCl at 273 K. Calculate the molar mass of BSA.
Compute the atomic mass of 109Ag if natural abundance of 107Ag is 51.87% & atomic mass =106.905 amu and determine the probability of particle would be located in the range
propose a mechanism for the conversion of glucose 6-phosphate into fructose 6-phosphate by phosphoglucose isomerase based on the mechanism
Calculate the sodium ion concentration when 80.0 mL of 3.2 M sodium carbonate is added to 25.0 mL of 2.3 M sodium bicarbonate.
draw an energy level diagram for Hydrogen starting at n=2 and ending at n=6. (n=1 transitions are high-energy transitions and emit in the ultra-violet region).
The molar volume of the liquid at this temperature and pressure is 163.3 cm^3/mol. At 100 atm the melting temp changes to 351.26 K. Calculate the enthalpy and entropy of fusion of the solid.
What is the silver ion concentration in a solution prepared by mixing 457 mL of 0.373 M silver nitrate with 475 mL of 0.442 M sodium phosphate?
in the procedure for brominating e-stilbene that involves in situ generation of bromine what is the solid that appears
A diamond weighs 5.35 ounces. How much is it worth if the going price of diamonds is 627 dollars per carat? 1 carat is equal to 200 milligrams
A 0.451 M solution of a weak acid, HA, has a pH of 4.01. Calculate Ka for the acid. Use E notation and 3 significant figures.
Update the backbone to properly show a tripeptide, and add side chains and hydrogen atoms to show Gly-Phe-Tyr.
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places. Enter scientific notation as 1.23E4
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