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Given the concentration of either hydrogen ion or hydroxide ion, use the ion product constant of water to calculate the concentration of the other ion at 298KA. [H+]= 1.0*10^-4B. [OH-]=1.3*10^-2for A do you subtract 1.0*10^-14? and for B do you divide 1.0*10^-14 and 1.3*10^-2
Explain the order of elution you observed while performing the gas chromatography for this experiment. What property of the product molecules seems to be the most impor- tant in determining relative retention times?
The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq) is completely oxidized by an aqueous solution of BrO3-(aq). Complete and balance the equation for this r..
A mixture of gases with a pressure of 800.0 mm Hg contains 60% nitrogen and 40% oxygen by volume. What is the partial pressure of oxygen in this mixture?
A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 125 for 1.0 of the gas to effuse. Under identical experimental conditions it required 28 for 1.0 of gas to effuse. Calcul..
The Born-Haber cycle is a series of steps that represent the formation of an ionic compound from a metal and a nonmetal. For example, the steps in a Born-Haber cycle for the formation of NaCl(s) consist of sublimation of the metal Na atom
Using the values for the resonance energies of benzene and naphthalene given above, explain why Diels-Alder reactions of anthracene take place at the center ring, not one of the end rings.
Draw a structural formula that you would predict in aspirin in each of the following biological environments. a. Esophagus pH 6.8
What is the pH of a buffer that consists of 0.20 M NaH2PO4 and 0.40 M Na2HPO4? Ka = 6.2 × 10-8
If 100 g of Mg reacts with excess HCl, what volume of hydrogen gas at 25 degrees C and 1.0 atm pressure will be produced. balanced equation
Determine the molality of a solution prepared by dissolving 0.500 moles of CaF2 in 11.5 moles H2O.
Addition of the permanganate solution to the unknown solution would colorimetrically indicate whether metal(III) is reduced to metal(II). If the unknown solution contained the metal(III) ion, the purple color of the solution would get darker. If t..
Imagine that you have a 5.50 L gas tank and a 2.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch
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