Calculate the molar mass of the enzyme
A 7.00% solution by mass of an enzyme in water has an osmotic pressure of 20.0 torr at 291 K. Calculate the molar mass of this enzyme. (Assume that the density of the solution is 1.00 g/mL.)
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It has been determined that the body can generate 5500 kJ of energy during one hour of strenuous exercise. Perspiration is the body's mechanism for eliminating this heat. How many liters of water would have to be evaporated through perspiration to
If 69.5 kJ of heat is applied to a 1036 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
An ice cube is placed in a beaker of water at 20 c. the ice cube partially melts and the temp of the water is lowerd to 0 c at this point both ice and water are at0 and no further change is apparent.
Consider the following equation, for which Keq = 1.4e+83 at 25oC. What is the value of Keq for the reaction H2(g) + 1/2 O2(g) 1/2 H2O(l)?
A 7.00% solution by mass of an enzyme in water has an osmotic pressure of 20.0 torr at 291 K. Calculate the molar mass of this enzyme.
Hydrochloric acid is sold as a concentrated aqueous solution. If the molarity of commercial HCL is 12.0 and its density is 1.18g/cm3 Calculate the weight percentage of HCl in the solution.
Describe how you would prepare 1.00L of 0.75 M barium hydroxide solution starting with 6.00 M barium hydroxide solution.
What mass of sucrose should be combined with 537 mL of water to make a solution with an osmotic pressure of 8.55 atm at 290 K ? (Assume the density of the solution to be equal to the density of the solvent.)
Based on the average number of moles of IO3- in your samples, and the initial volume of those samples, what is the solubility of Ca(IO3)2 in mol/L of the saturated solution in pure water?
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