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The basicity test differentiates aromatic and aliphatic amines based on their solubility in a pH 5.5 buffer. Given that Kb for aniline is 4.2e-10, calculate the ratio of amine salt to dissolved amine for aniline in such a buffer.
what is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? please put your answer in units of
what is the maximum amount of sodium chloride that can be separated at 25 ºC by filtration, and what is the mass percentage of sodium chloride in the filtrate?
Estimate the Debye Temperature of gold form the following information. For gold, the atomic weight is 197, the density is 19000 kg/m^3 and the velocity of sound is 2100m/s.
How many L. of N2 gas are produced at STP when the airbag inflates if the airbag contains 132 g. of Sodium Nitride?
If a 0.568m soloution had a 3.75 C difference in its freezing point from the pure solvent, what is the freezing point depression constant Kfp for the solvent
write the expression for the equilibrium constant kc for the following chemical reaction?4h3oaq 2cl-aq mno2s mn2aq
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium (III) fluoride. (For CrF3, Ksp = 6.6 x 10-11.)
What determines whether two substances are likely to be miscible with each other, in terms of thermodynamic and intermolecular forces
Suppose that ammonia (a monoprotic base), applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81.
When a 2.00 L flask containing 1.50 atm of gas A is joined with a 2.50 L flask containing 0.350 atm of gas B, and the stopcock between the flasks is opened, and the gases are allowed to mix thoroughly, the following reaction proceeds at constant t..
What is the osmotic pressure of a solution made from dissolving 90.0 g of glucose, rm C_6H_{12}O_6, in 650 mL of water at 14.0{^circ}C.
Ferrocene cannot be nitrated using the conventional HNO3-H2SO4 mixed acid conditions
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