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An aqueous solution contains the amino acid glycine. Assuming that the acid does not ionize in water, calculate the molality of the solution if it freezes at -1.1 degree centigrade.
Calculate the delta h required to 1 mole of ice at -25 degrees celcius to convert steam at 125 degrees celsius
What is the chemical definition of a buffer solution? Give an example. 2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?
Does the octet rule mean that a diatomic molecule has 16 valence electrons? Select from the following:
what is the osmolarity of a solution that has a concentration of NaCl of 0.300 mol/L?
The two phases are allowed to come to equilibrium with their product ammonia in a vessel of fixed volume and at a temperature
Tabulate the viscosity and density of water between the temperatures of 10 degrees and 80 degrees, in one degree increments in the 20 to 35 degrees interval and in 5 degrees increments outside this interval
the molar heat of fusion is 6.02 kJ mol-1, obtain an expression in terms of A and D that gives the total heat needed to melt the block of ice if its temperature is the normal melting point.
Ethylene glycol, C2H4(OH)2, is the main component of antifreeze. What mass percentage of ethylene glycol in water must be used to reduce the freezing point of the mixture to -9.34 deg-C? (K_fp for water is -1.86 deg-C/m).
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the lead required 26.68 mL of the EDTA solution. Determine the com..
A weak acid with a starting concentration is 12.5% dissociated. a) Calculate the [H3O+], pH, [OH-] and pOH of the solution. ([OH-] = 1.1 × 10-13 M, pOH = 12.96
Calculate the osmotic pressure of a solution containing 20.00mg of hemoglobin in 16.3mL of solution at 25 ? C The molar mass of hemoglobin
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