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Given a buret filled with 0.13 M acetic acid and a second buret filled with 0.17 M sodium acetate, how many milliliters of each solution should be mixed together to produce 23.5 mL of a solution with a pH of 4.82?
What is the maximum number of orbitals that can be identified by each of the following sets of quantum numbers?
what is the molar mas of gas if 1.20g of the gas has a volume of 235 mL at STP? A 1.26 sample of He gas has a pressure of .123 atm and volume of 32.6 L. what is the temperature in degrees C?
If nitrosyl bromide, NOBr, is 34 percent dissociated at 25°C and the total pressure is 0.25 atm, calculate Kp and Kc for the dissociation at this temperature.
What is the persent yield of diethyle ether. b, During the proecess 45% of ethanol that did not produce diethyl ether react by the side reaction. What mass of ethylene is produced
Calculate the nonstandard emf for each of the following reactions if the concentration of each of the ions in these reactions is 0.0004 molar and everything else is standard (use 298 K for the temperature, R = 8.314 J/mol-K, and F = 96,485 C/mol)
If copper has a photoelectric threshold wavelength of 279 nm, calculate the velocity (m/s) of the electron emitted when copper is illuminated with light with a frequency of 2.33 × 1015 Hz. Express answer in scientific notation.
The reaction of fluorine of 7.6 grams with excess chlorine(Cl) produced 3.3 grams of ClF3. Determine the percent yield of ClF 3 was obtained??
Calculate ?G at 25 ºC for a reaction in which Ca2+(aq) combines with CO32-(aq) to form a precipitate of CaCO3(s) if the concentrations of Ca2+(aq) and CO32-(aq) are 0.023 M and 0.13 M, respectively. (?Gº = -47.94 kJ)
the pressure exerted on a 240 mL sample of hydrogen gas at a constant temperature is increased from .428 atm to .724 atm. What will the final volume of the sample be.
Find the entropy change of the system and of the surroundings if 3.000mole of water freezes reversibly at 1.000atm. the freezing temperature is 0.00C at this pressure, and the specific enthalpy change of fusion is equal to 79.7cal/gm at this tempe..
the solubility of a salt in water represents the amount of solute necessary to reach a state of equilibrium between saturated solution and undissolved
The surface area of the nail is 8.59 cm. The density of the zinc is 7.13 g/cm3 how many zinc atoms are used in the coating?
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