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(1) A. In determining the percent acetic acid in vinegar, the mass of each vinegar sample is measured rather than volume. Explain.
(1) B. If the vinegar were measured volumetrically (e.g. a pipet), what additional piece of data would be needed to complete the calculations for experiment.(2) The wall of a flask is periodically rinsed with the previously boiled, deionized water from the wash bottle. How does this titrimetric technique affect the reported percent acetic acid in the vinegar? Explain.
Calculate the concentration of a solution with a measured absorbance of 0.224 if b=1.00cm and ε = 4.4 x 10 to the 5th L/cm mol.
Calculate the molarity of a solution of glycerol made by dissolving 34.000 mL glycerol at 15 C in enough water to make 300.00 mL of solution.
A solution of H2SO4 and KI is then added to conver the MnO2 to MN^2+, and the iodide is converted to I2. The I2 is then titrated with standardized Na2S2O3. Calculate the amount of O2 in 25.0mL of water if the titration requires 2.45ml of 0.0112 M N..
the entropy chage for vaporization of hi at its boiling point is 89.0 j.k-1.mol-1. if the heat of vaporization of hi is
Liquid sodium can be used as a heat transfer fluid. It's vapor pressure is 40.0 torr at 633 Celsius and 400.0 Torr at 823 Celsius. Calculate its heat of vaporization.
if i have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 liter what will the new pressure inside the piston be?
how many pounds of are produced from the complete combustion of 1.00 gal of gasoline? assume that gasoline has the
Which of the following sets of quantum numbers or electron configurations cannot exist in a hydrogen atom? Why? a) n=2, l=2, m1=0 b) n=3, l=0, m1= -1 c)1p^3 d)3f^6
A closed container is filled with oxygen. The pressure in the container is 375kPa . What is the pressure in millimeters of mercury
The endpoint in the titration is "overshot" A. is the reported molar concentration of the hydrochloric acid solution too high or too low. EXPLAIN
Calculate the pKa of the second ionizable group of Z.
Express b in terms of the mass m of each atom and the temperature T of the gas( and other constants), given that the Boltsmann factor in P(cx) pertains to the x- component of the kinetic energy of each atom in the gas.
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