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A 1.553 g sample of chymotrypsin is placed into 100.0 mL of water. When this solution was separated from pure water by a semipermeable membrane, the resulting osmotic pressure supported a column of Hg that was 11.6 mm high. If the temperature was 25 °C, what is the molecular weight of chymotrypsin?
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol, has 5.00 x 1025 atoms of oxygen. How many kilograms of Ca(NO3)2 are present
Choose one of the non-heme based oxygen transport proteins (i.e. not hemoglobin or myoglobin). Sketch the oxygen binding site environment
The solubility of the ionic compound M2X3, having a molar mass of 205 g/mol, is 3.16 10-7 g/L. Calculate the Ksp of the compound.
In the reaction given below, for every 12 molecules of aluminum oxide consumed, how many molecules of oxygen are produced. 2Al2CO3 ---> 4 Al + 3 O2
when 7.00 moles of gas A and 3.00 moles of gas B are combined, the total pressure exerted by the gas mixture is 1.0 atm. What is the partial pressure exerted by gas a in this mixture
In the combustion reaction of 149 g of propane with excess oxygen, what volume of carbon dioxide if produced at STP?
If a breakdown of the thermal insulation around the turbine allows a heat loss of 60 kJ per kg of stream, and the exiting steam is at 150oC and 0.3 MPa, what will be the power developed by the turbine if the inlet steam conditions and flow rate ar..
The density of the propane is 0.621 g/ mL Hint: begin by writing a balanced rquation for the combustion reaction.
Consider two jars. One jar contains 100 blue spheres, and the other jar contains 25 each of red, blue, green, and yellow colors mixed together. If you were to remove 30 spheres from the jar containing the mixture (assume you get a representative d..
The mole fraction of KNO3 in an aqueous solution is .0194. The density of the solution is 1.0627 g/mL. Calculate the molarity of the solution.
Why must we know both in order to explain the physical properties of the molecule. physical properties to be considered are solubility and the points when the molecule changes states
Given that the standard free energy of formation of MCl2(s) and MO2(s) are, respectively, -311.5 and -286.5 kJ/mol at 25o C. What is the standard change in free energy (kJ) for the following reaction
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