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Pervaporation is the process that is used to make ethanol in nearly pure form from a feed with ninety percent C2H5OH and ten percent H2O.. the feed enters at the temperature of 80 degree Celsius, and the design calls for reheating the liquid after the temperature has dropped to seventy degree Celsius the determine about how many stags and how many heaters are required for this process?
Using the same sample of gas (P 1= 795 torr , T 1 = 37 C ), we wish to change the pressure to 7950 torr with no accompanying change in volume or amount of gas. What temperature T 1, in Celsius, is needed to reach this pressure
Suppose that a sample of gas occupies 162 mL of volume at 25C and a pressure of 291 torr. What would be the volume if the pressure were changed to 503 torr at 25C? Answer in units of mL.
The complete electron configuration of: Beryllium Fluorine Aluminum The noble gas configuration of: Iron Yttrium Bromine Fe+3 Ba+2 As-3
Write the formulas for each of the following ions and compounds: (a) tetrahydroxozincate(ll) (b) pentaaquachlorochromium
What conclusions can you draw concerning structures of species containing the same number of atoms and the same number of valence electrons?
Einstein stated that the incident radiation had to have a minimum energy to dislodge the electron from the metal surface. This energy is called the work function.
Why does the water solubility of the acidic compound change when going from the aqueous base to the aqueous acid? pls write the eq'n to illustrate this change.
has freezing point depressiom constant of 42.8 C/molal .if you mix 29.67 grams of camphor with 4.28 grams of triose (C18 H32 O11), wht will be the new melting point of the mixture
Calculate expected final temperature for 25 grams of 70 C hot water melting 15 grams of 0 C ice. Repeat this calculation
what solution will have the lowest boiling point?
Using values from Appendix C of your textbook, calculate the value of Keq at 298 K for each of the following reactions: (a) 2 Cl2(g) + 2 H2O(g) 4 HCl(g) + O2(g) Keq = . (b) 3 NO(g) NO2(g) + N2O(g) Keq = . (c) CH4(g) + 4 Cl2(g) CCl4(l) + 4 HCl(g) K..
The mass of an electron is 9.11 * 10^{-31} kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^{-10}m, how fast is the electron moving relative to the speed of light?
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