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A sample of 87 mg of an ideal gas a 0.600 bar pressure has its volume doubled and its absolute temperature tripled. Find the final pressure.
the temperature inside a pressure cooker is 111°C. Calculate the vapor pressure of water inside the pressure cooker.
Determine the solubility of N2 in water exposed to air at 25 C if the atmospheric pressure is 1.2 atm. Assume that the mole fraction of nitrogen is 0.78 in air and the Henry's law constant for nitrogen in water at this temperature is 6.1 10-4 M/at..
BNCT relies on the initial targeting of tumor cells by an appropriate chemical compound tagged with 10 5 B , which preferentially concentrates in tumor cells.
A student has spilled some acid onto their arm. One lab partner suggests pouring some base on it to neutralize the acid but the TA quickly interjects that would be a bad idea and has the student begin washing their arm
The standard free energy of activation of a reaction A is 76.9 kJ mol-1 (18.4 kcal mol-1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature
calculate both its boiling point and its freezing point in C.
Calculate ΔH and ΔStotal when two iron blocks each with mass of 1.00kg, one at 25'C and one at 250'C are placed in contact with each other in an isolated container.
Calculate the pH of a buffer made with 0.50 M phosphoric acid and 0.75 M sodium dihydrogen phosphate. Ka = 7.5 x 10^-3
Calculate the freezing point and boiling point of the solution. Kf benzene = 5.12 C/m Kb = 2.53 C/m
account for each of the following properties of solids: the definite volume, the relatively high density of solids, the extremely low rate of diffusion.
What is the pH of the solution at the equivalence point for the titration of 100 mL of a .786 M HCO2H solution with a .786 M Solution of sodium Hydroxide? Formic acid has a Ka=1.80*10^-4
A buffer solution of pH of 9.25 contains P mol of a weak base and Q mol of a salt of its conjugate acid. When 120 cm3 of a 0.0140 mol.dm-3 solution of hydrochloric acid was added to this buffer solution
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