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Problem- Use the henderson-hasselbalch equation to calculate the pH of a buffer containing .250 M sodium propionate and 0.350 M propionic acid. The Ka of propionic acid is 1.34 *10^-5.
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If a pure R isomer has a specific rotation of -133.0°, and a sample contains 64.0% of the R isomer and 36.0% of its enantiomer, what is the observed specific rotation of the mixture
starting with ethyne and any alkyl halide with four or fewer carbons, any needed inorganic reagents, show how you would synthesize the following compounds
Assuming the following reaction proceeds in a forward direction Cu2+(aq)+Ca(s)----> Cu(s) + Ca2+(aq) Which one is oxidized and which one is reduced
Calculate the wavelength of each of the following frequencies of electromagnetic radiation. 1105 kHz (typical frequency for AM radio broadcasting)
Which of the subsequent statements correctly explain thehydronium-hydroxide balance in a given solution
The small bubbles that form on the bottom of a water pot that is being heated (before boiling) are due to dissolved air coming out of solution.Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen ga..
A reaction occurs at a rate of 2.25 *10-2 moles per liter per second at 332 K. Estimate the increase in the rate of a reaction when the temperature increases to 332 K. Express the rate in moles per liter per second.
Carbon and silicon belong to the same group and are known to have similar properties
How many milliliters of 0.121 M H2SO4 are needed to neutralize 0.220g of NaOH? If 42.5mL of 0.220 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution?
What is the elution order if these same compounds are separated on a silica column using a polar solvent such as water?
1.00 mL of .500 M Ag+ is added to this solution and the resultant AgCl quantitatively precipitated. Basd on the Ksp expression, calculate the concentration of the Cl- that remains in solution
The stable form of the common sugar glucose contains a six-membered ring in the chair conformation with all substituents in equatorial postions. Draw the most stable conformation of glucose
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