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What is the experimental yield (in g of precipitate) when 18.6 mL of a 0.634 M solution of barium hydroxide is combined with 19.5 mL of a 0.558 M solution of aluminum nitrate at a 85.4% yield?
write the chemical equation for the reaction that occurs when you add NaOH solution to a CH3CO2H/NaCH3CO2 buffer solution
Identify the substance produced in the liver that helps catalyze this reaction.
A solution of 0.0385 M hypochlorous acid, HOCl, has a pH of 4.47. Calculate the acid dissociation constant Ka.
Water is composed of 11.2% hydrogen and 88.8% oxygen. What mass of water contains 16.0g of hydrogen?
For each of the following equilibria, use Le Chatelier's principle to predict the direction of reaction when the volume is increased.
calculate pH at points between the start of titration and equvalence point: choose points so tht they will be more dense where change in pH is faster
alloy sample was analyzed for its copper content iodometrically. The alloy was dissolved in hot, concentrated nitric acid and prepared for analysis
Determine the limiting reactant -reaction mixture initially contains no products
A piece of the mineral zircon is found to contain a Pb-206:U-238 ratio of 0.213 g:1.00 g. Assuming all Pb-206 in the sample is attributable to decay of U-236
What is the Slater determinant for the GS of Be? I need to also find an expression for its energy in terms of Coulomb and Exchange integrals.
A sample of methane gas at a pressure of 0.801 atm and a temperature of 26.9oC, occupies a volume of 687 mL. If the gas is allowed to expand at constant temperature until its pressure is 0.438 atm, the volume of the gas sample will be
The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at 22.75 C and 485 Torrat 0C. what is the standard enthalpy of vaporization?
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