How the liquid chromatography can be used to separate
If a solution contains 57.2% H2O, 32.6% HDO and 10.2%D2O by mass, what is DS, DG, DV and DH for the separation process if the temperature is 21 °C? Liquid chromatography can be used to separate compounds.
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Determine the margins of error for 95% confidence based on SRSs of 400 young women and 1600 young women.
Let S be set of all people in world. For a, b E S, state the binary relation R as follows: ( a, b ) E E if and only if a and b have visited same webpage. Is this example of the partially ordered set? Explain why or why not?
Use orbital configurations to determine which has the stronger bond for each of the following pairs: (a) O2 or (b) O2+; (c) N2 or (d) N2+; (e) F2 or (f)F2+; (g) CN or (h) CN-. Enter the four letters corresponding to the four stronger b
The pressure of an unknown gas is measured with a manometer. The pressure is measured as 673 mmX. What is the pressure in mmHg? Instead of mercury the manometer is filled with a liquid (X) whose density is 0.575 g/cc.
If P is fixed can T vary if a solution of 0.1 mol al AgNO3 in water saturated with AgCl and AgBr (both solids present), is placed in an evacuated vessel of larger volume than the solution. List all the components present.
The volume of the mixture is 1.7 L and its total pressure is 0.810 atm if zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over a liquid whose temperature is the same as pure water at 20.0 degrees C (18 torr).
Determine the velocity of a neutron whose de Broglie wavelength is 500 pm. The mass of a neutron is1.67 x10-24 g. use this formula:
Determine the volume of hydrogen gas at 40 degrees Celsius or 313Kand 20.0 torr obtained when the .255g of boron hydride reacts.
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