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A lactic acid/lactate ion buffer solution contains 0.24 M HC3H5O3 and 0.82 M C3H5O3^-, respectively. The Ka value of lactic acid is 1.4*10^-4. Calculate the of this buffer. Express the pH numerically.
What mass of barium is produced when molten barium chloride is electrolyzed by a current of 2.50 x 10^5 A for 6.00 hours
note the lewis structure h3o. highly electronegative atos often have a partial negative charge on them. negative formal
A .647 L sample of hydrogen chloride (HCl) gas at 1.12 atm and 23°C is completely dissolved in 885 mL of water to form hydrochloric acid solution. Calculate the pH of the solution.
an automobile gasoline tank holds 47 kg of gasoline. when the gasoline burns 165 kg of oxygen are consumed and carbon
Which statement best describes relationships in a modern periodic table? A.) Each transition element is placed in the column of the main group element that it most closely resembles.
draw out the complete coordination environment of each zinc ion in liver alcohol dehydrogenase ladh including all
Consider the following chemical equation. Al(OH)3(s) + H2SO4(l) ? Al2(SO4)3(aq) + H2O(l) If 3.30 g of aluminum hydroxide reacts with 1.50 g of sulfuric acid, what is the mass of the water produced
The turnover number for an enzyme is known to be 5,000 min-1. From the following set of data, calculate the Km and the total amount of enzyme present in these experiments.
chcooh harr ch3coo- h write the equilibrium expression for the reaction. what is the concentration of h if the ph is
A bag of potato chips contains 595 ml of air at 25.0 degrees celsius and a pressure of 775 mm Hg.Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 424 mm Hg and the temperature is 10.0 degrees ..
solution of unknown weak acid is combined with 70 ml of a .25 M strong base, and the final pH of the solution is measured to be 2.99. What is the pKa of the unknown acid?
Metals ions can also be placed in a spectrochemical series. In this case, larger effective nuclear charges generally lead to larger values for (delta) . Based on this principle, predict a spectrochemical series for the following ions
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