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Compute the osmotic pressure in torr of a solution containing 18.75 mg of hemoglobin in 15.0 mL of solution at 25.0oC. Explain the molar mass of hemoglobin is 6.5 x 104 g/mol.
What effect does the structure of the alkyl halide (the substrate) have on SN1 and SN2 reactivity. For each reaction mechanism (SN1 and SN2) compare simple primary, secondary, and tertiary alkyl halides.
Which is the electrophilic site in the following compounds. A. CH3Cl B.H3C-O-CH3 with two lone pairs around O C. BH3. What is the nucleophilic site in each of the following molecules.
For a particular liquid, raising its temperature from 330 K to 353 K causes its vapor pressure to double. What is the enthalpy of vaporization of this liquid? (R = 8.31 J/(K· mol))
The nitrate stock standard utilized in this experiment is 1000ppm NO3- prepared by dissolving 163mg of dried KNO3 in 100mL water. NaNO3 can also be utilized if no KNO3 is available. Explain what weight of NaNO3 must be used to make a 100mL solutio..
the absorption of ultraviolet light by rna in the near uv 250-300nm is due to electronic transitions within the bases.
a metal sample weighing 71.9 g and at a temperature of 100.0c was placed in 41.0 g of water in a calorimeter at 24.5c.
Gold, like iron and copper, can have more than one monatomic cation. Knowing this, a mining company wanted to find the formula of a gold - chlorine compound that it has come across during its mining operation.
the ph for a 2.6 moll propanoic acid solution was 2.24. what is thenbspkanbspof propanoic acid given that propanoic
according to boyles law if the temperature of a confined gas is held fixed then the product of the pressure p and the
Silicon carbide is produced by heating silicone polymers, forming methane gas, hydrogen gas, and silicon carbide. Balance the reaction of heating [(CH3)2Si]8 to form silicon carbide.
oes this result mean that the change in enthalpy of this process must be negative in order for the process to be spontaneous under standard state conditions? How come?
The standard molar enthalpy of vaporization for water is 40.79 kJ/mol. What mass of steam is required to release 500. kJ of energy upon condensation? (Molar mass of water is 18.02 g/mol.)
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