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Problem- What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M methylamine, CH3NH2, with 25.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl? Assume that the volume of the solutions are additive and that Kb = 3.70 × 10-4 for methylamine.
Answer showing how to make each solution will get rated
Performed Lab with Na2CO3 in BaCl2 first. The reaction created a white precipitate, and presume the products are BaCO3 + 2NaCl. Not sure if NaCl is dissolved or not, or if it was the white precipitate, however anyways, here's my question.
A gaseous mixture of O2 and N2 contains 40.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 405mmhg
(a) Cl2(g) is added to the system. (b) The reaction mixture is heated. (c) The volume of the reaction vessel is doubled. (d) A catalyst is added to the reaction mixture. (e) The total pressure of the system is increased by adding a noble gas. (f) ..
methanol is produced commercially by the catalyzed reaction of carbon monoxide and hydrogencog 2 h2g ch3ohgan
Using a ground-based telescope and a spectrometer, it has been found that sodium vapor is a major component of the thin atmosphere of Mercury. Its concentration is estimated to be about 1.0x10^5 atoms per cm^3
hydrofluoric acid hf has a ka value of 7.2 times 10macr 4.a. 0.250 mol of fmacr ions in the form of naf are added to
When two gases are mixed, they follow Dalton's law of partial pressures. -It is impossible to compress a gas enough so that it takes up no volume. -CO2 gas becomes dry ice (solid CO2) at 1 atm and -78.5 °C.
calculate the freezing point of this solution, boiling point of this solution, the vapor pressure change (from 23.76 torr at 25C) for the solution, the osmotic pressure of the solution, and the height of a column of water corresponding to this osm..
In order to maximize topographic contrast in SEM, would you use backscattered or secondary electron detector? Explain.
How much pressure needs to applied to a volume of helium in order to reduce it's volume from 100mL to 40 mL
how would you precipitate acetyl salicyclic acid from an aqueous solution of sodium acetyl salicylate and what measures would you take to ensure complete precipitation
a water sample was found to contain ca235 mgl and mg220 mgl. determine the water hardness in terms of mgl caco3.and
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