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Define A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. Define what is the molar mass of the protein?
What is the volume of ammonia gas, measured at 489.9mmHg and 37.4oC, is required to produce 8.41g of ammonium sulfate according to the following balanced chemical equation
a 9.780 g. gaseous mixture contains ethane c2h6 and propane c3h8. complete combustion to form carbon dioxide and water
Calculate the concentration of ions in the following solutions, [I] in AgI in AgI solution with [Ag+] = 9.6E-9 M Ksp=8.3E-17
What two aqueous reactants might you combine to give a barium sulfate precipitate? Write the molecular equation for the reaction that would result.
How much heat is required to warm 219 g of ice from -45.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C
Calculate the amount of C6H12O6 (glucose) you would need to measure out on a balance in order to have 1.504 x 10^23 molecules of C6H12O6 (glucose)
the absolute entropies of the solid and liquid metal are 24.0 and 66.2 J/K.mol, respectively, at the melting temperature. Calculate the melting point of the metal
Suppose you inserted a piece of an unknown metal into a solution of zinc (II) nitrate and observed no reaction. Then if you inserted the unknown piece of the metal into the solution of iron (III) chloride a deposit formed on the bottom of the well..
Calculate the lattice energy for the hypothetical ionic compound M2X from the information given below. IE1(M) = 424 kJ/mol M(s) => M(g) ?Ho = 84.3 kJ/mol ?Hof(M2X) = -888.3 kJ/mol X2(g) => 2X(g) ?H = 231 kJ EA1+EA2 (X) = 476 kJ/mol IE1 (X) = 271 k..
What is the abbreviation for deoxyguanosine 5'-diphosphate. Enter the abbreviated name for the nucleotide. For example, adenosine 5'-triphosphate is abbreviated ATP.
Fractional distillation was applied to separate a mixture of water and methanol. The same method was also applied to separate a mixture of carbon tetrachloride and toluene, using the same fractionating apparatus
In going from room temperature (25.0 °C) to 10 °C above room temperature, the rate of a reaction doubles. Calculate the activation energy for the reaction.
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