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a) The standard free energy for the neutralization of HCl with NaOH at 25 degrees celsius is -79.9KJ/mol. Calculate the equilibrium constant for the reaction.
b) The Ksp for Ag2SO4 is 1.1 x 10^-5. Calculate the standard free energy change for silver sulfate dissolution at 25 degrees Celsius.
calculate the pH of a sodium cyanide solution that is 0.37M NaCN. The Ka for hydrocyanic acid HCN is 4.00E-10.
if 294 grams of is allowed to react with 176 grams of according to the following unbalanced equation, how many grams of are produced? How many grams of FeS2 and O2 are left?
What mass of this substance must evaporate in order to freeze 160 g of water initially at 21 0C? (The heat of fusion of water is 334 {J/g}; the specific heat of water is 4.18 {J/g c.K}.)
A compound is found to be 26.95% sulfur, 13.43% oxygen, and 59.61% chlorine by mass. What is the simplest formula of the compound?
Construct a molecular orbital system for the basis set as the basis set, considering linear , bent , and cyclic gemetries
The buffer has a concentration of 150 mMol ( 150 mM of KH2PO4 / 150 mM K2HPO4. The pKa of the drug ephedrine is 9.6. Will the drug have a negative, positive, or neutral?
An aerosol can has a gas pressure of 133 kPa at 293 K. Calculate the pressure when the can is heated to 460 K.
Why is sodium bicarbonate used with acids and used in cooking
The use of the British thermal unit (Btu) is common in much enginerring work. (1Btu=1054J). A Btu is the amount of heat required to raise the temperature of 1Ib of water by 1 degree F. How many QUADS of energy does world energy consumption quantit..
What are these Lewis Structures?
Select the strongest interparticle force(s) present in Mg3N2.
Cadmium ion in solution is analyzed by precipitation as the sulfide, a yellow compound used as a pigment in everything from artists' oil paints to glass and rubber. Calculate the molar solubility of cadmium sulfide at 25?C ?
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