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An aqueous CaCl2 solution has a vapor pressure of 83.0 mmHg at 50 degrees celsius . The vapor pressure of pure water at this temperature is 92.6 mmHg.
What is the concentration of CaCl2 in mass percent?
How many vinylic hydrogens are there in 1-ethylcyclohexene? A. one B. two C. three D. four
The bromocresolgreen end point of the titration was reached after the addition of 30.00 mL of hydrochloric acid solution. Calculate the concentration of the acid solution.
silica gel columns having smaller particle size procedure more effective chromatographic separations
The dispersion of a diffraction grating, such as the one shown at the right, is the angle of separation per ?m of wavelength. It depends on the order of the diffraction (n),
How many liters of HCl at 100.0 oC and 740 mm Hg are produced from 150.0 g of C10H16?
Use the de Broglie relationship to determine the wavelengths of the following objects: an lithium atom moving at 2.5*10^5m/sUsing Heisenberg's uncertainty principle,
The vapor pressure of pure methanol, CH3OH, at 30 °C is 160. torr. How many grams of the nonvolatile solute glycerol, C3H5(OH)3, must be added to 131. g of methanol to obtain a solution with a vapor pressure of 133. torr?
After allowing circulatory equilibrium to be established, a 0.20-mL sample of blood is found to have an activity of 20. counts per second. Calculate the blood volume of the animal.
mixture of the same bromoalkanes, and they both undergo hydroboration/oxidation to give a mixture of the same alcohols. Determine What is the structure of B?
A key oxidative step(s) in the B-oxidation cycle of fatty acids includes: a. addition of water to a double bond b. generation of a double bond from two adjacent -CH2 carbons
Draw a circuit diagram that has two resistors in series with a DC voltage source. If resistor one (R1) is 758 kohms and resistor two (R2) is 712 kohms, then what is the current flowing through the circuit if the voltage is 8.49 V?
What differences might you expect in the comparative solubility of each of them in lipids? WHY?
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