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For the best system, calculate the ratio of the masses of the buffer components required to make the buffer.?Which of the following buffer systems would be the best choice to create a buffer with pH = 7.1? The answer to this was HClO/KClO. Now I have to calculate the ratio of the masses of the buffer components required to make the buffer.
Volume of acid (HCl) used= 14.1 mL ;Volume of base (NaOH) used= 22.4 mL; Molarity of standard base (NaOH)= 0.20 M What is the molarity of the acid solution?
Calculate the Standard Enthalpies & Standard Entropies for each reactant & product at the temperature given first, then determine the ?H°rxn and ?S°rxn at 1600 K Zr(beta) + O2 = ZrO2(beta) Other information:
How many moles of iron atoms are in 2.28 mol of Fe2O3?
Calculate the molality of a hydrochloric acid solution that is 26.4% by mass and has a density of 1.19 g mL^-1
What is the molality of a solution prepared by dissolving 10.0 grams of methylamine, CH3NH2, in 50.0 mL of ethanol, C2H5OH?
What is the equilibrium partial pressure of Cl2 at 250 oC? What is the value of Kc at the same temperature?
Explain why the dichlorofluoresceinate anion is adsorbed onto the surface of the AgCl precipitate
The enthalpies of formation of oxalic acid in the solid and aqueous phases are -826.8 and -818.8 kJ/mol, respectively. The heat capacity of water is 4.184 J/g*K. Ignore the heat capacity of oxalic acid.
Student B's results are 8.4 g/cm^3, 8.8 g/cm^3, 8.3 g/cm^3. Compare the two sets of results in terms of precision and accuracy.
If the silver -silver chloride electrode is replaced with a saturated calomel electrode, what is the new cell voltage?
To treat a thyroid tumor, a patient must be given a 170-mCi dose of iodine-131, supplied in a solution containing 41 mCi/mL. What volume of solution must be administered per dose?
if 150g of water is collected during complete combustion of 166g of butane with ocyben, calculate the percent yield of water.
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