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When adjusted for any changes in and with temperature, the standard free energy change at 2400 is equal to . Calculate the equilibrium constant at 2400.
A first-order reaction has a half-life of 20 minutes. Starting with 1.00 x 10 to the 20th molecules of reactant at time t=0, how many molecules remain unreacted after 100
The Ka of lactic acid, HC3H5O3, is 1.410?4. (a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC3H5O3 and 60.0 mL 0.1 M C3H5O3- to give a final volume of 100.0 mL. What is the pH of this buffer
What is the concentration of Co2 ions at equilibrium? Assume the formation constant of Co(NH3)62 is 5.0× 1031.
If 315 ml of hydrogen gas is collected over water at 25 degrees C at a total pressure of 742 mm Hg , how many grams of Zn reacted?
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
Draw the two possible products of the reaction between benzaldehyde and ethylpropylketone
A student wants to dissolve the maximum amount of CaF2 (Ksp = 3.2 * 10^-11 ) to make 1 Liter of aqueous solution. a) Into which of the following solvents should she dissolve the salt ?
How many molecules of carbon dioxide are produced when 129 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Copper(I) ions in aqueous solution react with NH3(aq). Kf = 6.3x10^-10 M^-2 Calculate the solubility (in g·L-1) of CuBr(s) in 0.86 M NH3(aq).
Silver chloride often used in silver plating contains 75.27% Ag. Calculate the mass of silver chloride in grams required to make 4.0 g of silver plating.
A 27.0 mL solution of 0.100 M CH3COOH is titrated with a 0.200 M KOH solution. Calculate the pH after the following additions of the KOH solution. a.) 0.00 mL b.) 5.00 mL
It takes 171 minutes for the concentration of the reactant in a first-order reaction to decrease from 0.6000 M to 0.150 M at 25 C? How long will it take for the reaction to be 90.0% complete
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