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Calculate the rate of electro-osmotic flow of water at 25°C through a glass capillary tube 10 cm long and 1 mm diameter when the potential difference between the ends is 200 V. The zeta potential for the glass-water interface is -40 mV.
What is the approximate K+ ion concentration in a 0.75 M K2SO4 solution? A) 0.375 M B) 0.75 M C) 1.25 M D) 1.50 M E) 2.25 M
Using the Rydberg equation calculate to four sig figs the energy of electromagnetic radiation necessary for ionization
Excess air for combustion is calculated using the assumption of complete reaction whether or not a reaction takes place. For the typical combustion process the products are CO2 gas and H2O vapor. In combustion processes, since any oxygen in the coal ..
Presume that data were collected for 10000 sets of automobile brakes. The mileage at which each set had been 80% worn through was recorded. The average was 62700 as well as the standard deviation was 10400 miles.
An unknown organic compound with formula C5H10O2 contains two chirality centers. The unknown compound gave both a positive Tollen's test and iodoform test. What is the structure of the unknown compound
a gas is placed in a storage tank at a pressure of 20.0 atm at 20.3 degrees celsius. as a safety device there is a
The direction I was headed with this is trying to calculate the molality with what I have here and I used a 1:1 ratio for the C2H6O2 and the water, but that gives me .06206 kg/mol. What is the boiling point of the radiator fluid
how could one be endothermic (positive delta H- NaNO3 dissolves in water) and one be exothermic (negative delta H- NaCH3COO dissolves in water)? Is there more to consider than just the dissolving process?
Calculate the molecular weights of the 5 congeners listed above. What do the trends of log KOA, log KOW, and the negative log of water solubility vs. molecular weight indicate about the relationship between molecular weight and
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 8.44
nitrite is a common food preservative. it can be detected by titrating a nitrite-containing sample with a solution of
If Ka is 1.85 x 10^-5 for acetic acid, calculate the pH at one half the equivalence point and at the equivalence point for a titration of 50 mL of 0.100 M acetic acid with 0.100 M NaOH.
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