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A solution of dimethylamine/dimethylammonium buffer contains 0.246 M (CH3)2NH and 2.09 M (CH3)2NH2Cl. Calculate the pH of the solution. Round your answer to 3 significant digits. Kb= 5.1x10^-4 (CH3)2NH(aq) + H2O(l) = (CH3)2NH2+(aq) + OH-(aq)
A buffer is to be prepared with a pH of 4.5 from 0.1M solutions of sodium acetate and acetic acid. How many mL of 0.1M NaAc would have to be added to 100mL of 0.1M HAc to make the proper buffer solution?
If 158 of wet hydrogen is collected over water at 24 and a barometric pressure of 736 , how many grams of hydrogen have been consumed.
Use the Nernst equation to calculate the new cell voltage of the fresnium /copper cell if the fresnium has a concentration of 0.37 M, and the copper nitrate is at a concentration of 0.77 M.
Reactions in which a substance decomposes by losing CO. calculate the minimum temperature at which the process would become spontaneous assumming delta H
Draw the flow of e- and the products of the Methoxide Ion and water including formal charges on all compounds.
In the reaction of noroborene to noroborenol, the exo, and endo forms are created. Why exactly is the exo form favored over the endo form
The total precipitate was dissolved in HCl + HNO3. When the solution thus formed was treated with excess NaOH followed by H2O2, a colorless solution and a reddish brown precipitate were formed. The precipitate was found to be soluble in HCl, H2SO4..
when the initial concentration of reactant is 0.71 m a second-order reaction has a half-life of 18 s then determines
Consider the design of a sine-wave generator. List the operational parameters that should be considered in this design project
determine the heat released when (ethene) CH2 CH2 reacts with hydrogen gas and form CH3CH3.If Bond enthalpies given are H H : 436 kJ/mol,C Br : 276 kJ/mol,C C : 612 kJ/mol,C C : 348 kJ/mol,C H : 412 kJ/mol;
Perchloric acid with an aqueos solution of ammonia and nitrous acid with lithium hydroxide
If a photon has a wavelength of 412.2 nm, what is its energy in J, frequency in s^-1, wavenumber in cm-1, and linear momentum in kg m/s
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