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Consider the titration of a 26.0 mL sample of 0.175 M Ch3NH2 with 0.150M HBr . Determine each of the following. 1) the initial pH? 2)the volume of added acid required to reach the equivalence point? pH? 3)the pH at 5.0 mL of added acid ?? 4) the pH at the equivalence point??? 5) the pH after adding 6.0 mL of acid beyond the equivalence point ??
If the partial pressures of N2, O2 and NO at equilibrium are 1.5 atm, 2.5 atm and 0.75 atm respectively, what is the equilbrium constants
If the temperature and pressure are kept constant during the process, how many liters of chlorine must be with titanium to produce
Methanol, CH3OH, is a nonelectrolyte; acetic acid, HC2H3O2, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte. What are the solute particles present in aqueous solutions of each compound? (Select all that apply.)
phosphenolpryuvate how many moles of ATP can be derived just from reduced electron carriers (not substrate-level phosporylation?
give full mechanism: show the reaction of ethyl propionate with sodium ethoxide followed by cold aqueous acid work up
If the vessel is heated to 500 K, WHat is the percent decomposition of HBr and the equilbirum compositions of the mixtures?
Describe clearly why a single indicator solution in only useful for measuring pH over a rather narrow range. Use a specific indicator of solution
The Eu(III) standards added to the groundwater sample contained 0.181 ng/mL (ppb) of Eu(III). Calculate the concentration of Eu(III) in the groundwater sample.
A volume of 18.0 L contains a mixture of 0.250 mols N2 , 0.250 mols O2 , and an unknown quantity of He. The temperature of the mixture is 0 degrees C , and the total pressure is 1.00 atm.
calculate th volume of a chlorine solution ( in milliliters) a homeowner should add to her swimming pool if the solution contains 8.00 percent chlorine by mas and there are 5.63 x 10^4 gallons of water in the pool (1 gal = 3.79; density of liquids..
Calculate the pH at the equivalence point in titrating 0.120 M solutions of each of the following with 8.0* 10^-2 M NaOH
Calculate oxalate ion in the resulting solution. volume change is negligible Calculate the Kb for the reaction that occurs when solid sodium oxalate is dissolved in water
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