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Determine the activation energy for diffusing copper into gold if you know that the diffusion coefficient is 3.98 x 10-13 m2/s at 980 oC and the diffusion coefficient is 3.55 x 10-16 m2/s at 650oC.
The vapor pressure at 300 K is 856 torr. If 12.0 g of CCl3F is enclosed in a 1.0 L container, will any liquid be present? How much?
How many grams of sodium fluoride should be added to prepare the buffer solution? Neglect the small volume chane that occurs when the sodium fluoride is added.
What weight of solid PbCl2 is formed when 225ml of a .2424M solution of sodium chloride is mixed with 225 ml of a .4242 M solution Pb(NO3)2
Addition of silver nitrate solution results in a precipitate. Assuming that the heat capacity of the solution is the same as pure water, use enthalpies of solution and solubility rules to identify the salt.
What mass of Sucrose(C12H22O11) should be combined with 456g of water to make a solution with an osmotic pressure of 8.05atm at 280K
when 7.50g of magnesium reacts with 9.50g hydrochloric acid, hydrogen gas is formed. what is the limiting reagent?
Write a chemical equation describing the condensation process for CO2 and a chemical equation describing the freezing
The Ksp for BaF2 is 2.4 x 10-5. When 10 mL of 0.01 M NaF is mixed with 10 mL of 0.01 M Ba(NO3)2, will a precipitate form
what is the pressure of H2 gas collected over water when the total pressure is .980 atm at 25 degrees celsius.
A person inhales air richer in O2 and exhales air richer in CO2 and water vapor. During each hour of sleep, a person exhales a total of 300. L of this CO2-enriched and H2O-enriched air. (a) If the partial pressures of CO2 and H2O in exhaled air ar..
H--C(triplebond)C--H Acetylene. The overall rate law for the polymerization is first order with respect to both acetylene and the catalyst used for the reaction. What, therefore, is the slowest step of an addition polymerization: initiation, propa..
Commercially available concentrated sulfuric acid is 18.0 M H2SO4. Calculate the volume of concentrated sulfuric acid required to prepare 2.80 L of 0.275 M H2SO4 solution.
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