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A student doing an experiment was taking temperature, volume readings for determining ?Hvap. When the temperature of the water bath was 99 degrees C, the volumein the syringe was only 15mL. What can be concluded about the intermolecular forces, vapor pressure, and heat of vaporization for the compound he was working with?
if 3.55 mL of vinegar needs 43.0 mL of 0.130 M sodium hydroxide to reach the equilavence point in a titration, how many grams of acetic acid are in a 1.6qt sample of this vinegar?
Calcium fluoride has a Ksp of 3.9 x 10^-11 at 25 C. What is the fluoride ion concentration at equilibrium
A quantity of N2 occupies a volume of 1.5L at 300K and 1.2atm. The gas expands to a volume of 3.1L as the result of a change in both temperature and pressure.
the vapor pressure of a liquid at 25c is 200 torr. what will happen when the barometric pressure pbar is lowered to 190
If 0.260 moles of a monoprotic weak acid (Ka=9.0*10^-5) is titrated with NaOH, what is the pH of the solution at the half-equivalence point
Based on a Kc value of 0.170 and the given data table, what are the equilibrium concentrations of XY, X, and Y, respectively
a molal concentration of 6.25 m has a density of 1.300 g/mL. What is the molar concentration of this solution?
If the absorbance of one of your samples is off scale, what is the most likely problem?
A particular electrons position can be measured to a precision of 0.058nm, what is the minimum uncertainty in the electron' velocity? Me = 9.109 x 10E-31 kg, c= 3.00 x 10E8 m/s , h = 6.63 x 10E-34 js
the vapor pressure of pure ethanol at 35c is 102.8 torr and that of pure chloroform is 295.1 torr. in an
If more than one precipitate is expected, list the numbers in increasing order and separate them with commas. For example, 3,4,5 is ok but 5,4,3 is not. pH = 7.00: pH = 9.00: What is the pH to the nearest 0.1 pH unit at which Cd(OH)2 begins to pre..
describe a procedure for measuring the density of a liquid such a t-butanol. your only available tools are a graduated
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