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A reaction has a standard free-energy change of -10.60 kJ mol-1 (-2.533 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C
The vapor pressure of liquid Ni is 0.100 torr at 1606 degrees C and 1.00 torr at 1805 degrees C. The molar heat of fusion of Ni is 3.25 kcal/mol. Determine the vapor pressure of solid Ni at 1200 degrees C.
Electrical devices are often rated with a voltage and a current for example 120 V 5S batteries however are only with a voltage for example 1.5V why?
What would the solubility of copper (II) tartrate be in a solution that contains 0.12 M sodium tartrate?
what is the pH of a solution made by adding 5.42grams of potassium nitrite, to 727mL of .178 M nitrous acid(assume no change in volume takes place) and what is the pH of the solution after adding 49 mL of .100 M NaOH
Calculate the number-average molecular weight of a random nitrile rubber [poly(acrylonitrile-butadiene) copolymer] in which the fraction of butadiene repeat units is 0.30; assume that this concentration corresponds to a degree of polymerization of..
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
Phosphoric acid is a weak triprotic acid with the formula H3PO4. If you have 50.0 mL of a 1.0 M solution of H3PO4, how many grams of NaOH (MM = 40.0g/mol) should you add to make a buffer with a pH of 7.00?
what are the rates of production of P4 and H2 in this experiment?
A 15.00 mL sample of a 0.100 M solution of lead(II) nitrate is reacted with 10.00 mL of 0.170 M sodium chloride. How many grams of lead(II)
A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500. mL of 0.20 M HOCl. What is the pH of this solution? [Ka(HOCl) = 3.2 ? 10-8]
Molecular orbital (MO) theory predicts the O2 +2(a +2 CHARGE) ion has a bound order of
Name the highly volatile liquid may cause grave danger to The Environmental Health & Safety and Fire Safety professionals at happening scenes as its vapor
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