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the next three problems deal with titration of 125 mL of 1.75 M methylamine, CH3NH2 (Kb - 4.4 x10-4) with 0.25 M HCl Water will be a major species throughout the titration. The chemical species, in addition to water, that can be found in this reaction mixture during the titration are: I. H+, II. OH-, III. Cl-, IV. CH3NH2, V. CH3NH3+ . What is the pH of the solution at equivalence point? How many mL of HCl will need to be added to the methlamine, CH3NH2 solution to reach a pH of 10.64? What will the major species in solution be when 1198.75 mL of HCl has been added to the base solution?
At 63.5C the vapor pressure ofH2O is 175 torr, and that of ethanol,C2H5OH, is 400 torr. A solution is madeby mixing equal masses of H2O andC2H5OH. What is the molality of ethanol in the solution
It takes 47 mL of 0.124 M KOH to neutralize 47.8 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in units of moles/liter
predict the physical state of ammonia at -50 degrees c mp-77 degrees c bp-33 degrees c and normal atmospheric
How many liters of F2 at STP could be liberated from the electrolysis of molten NaF under a 2.16 ampere current
A 15.0 mL sample of an acid requires 37.3 mL of 0.303N NaOH for neutralization. Calculate the normality of the acid.
How many calories are require to convert 125g of water at 75.0 Celsius to steam at 100.0 Celsius? (heat of vaporization of H2O = 540.0/ H20(LIQUID) = 1.00 / steam = 0.47
Calculate the mass fraction of sulfuric acid in the product solution. b.) Taking 100 kg of the 20% feed solution as a basis, draw and label a flowchart of this process, labeling both masses and volumes, and do the degree-of-freedom analysis. Calcu..
An old synthetic procedure starts by calling for fifteen kilo grams of sulfuric acid. If your largest reaction vessel holds ten litres, can you put the fifteen kilograms of acid into the vessel, or would you require to scale down the reaction reag..
the hall process for the production of aluminum involves the reaction of aluminum oxide with elemental carbon to give
The resulting solution required 13.73 mL of 0.176 mol L-1 NaOH(aq) to neutralize the excess, unreacted HCl. What was the percentage by mass of Mg(OH)2 in the original sample [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a ch..
Element X has two natural isotopes: X-6 (6.015 amu) and X-7 (7.016 amu). Calculate the atomic mass of the element X given the abundance of X-7 is 92.5%
calculate th eapproximate freezing points of the following aqueous solutions (assume complete dissociation) a. 0.800 m NaCl b. 0.800 m
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