A pH buffer is a solution that resists changes in pH when acids or bases are added to it—typically, a solution of a weak acid and its conjugate base. What masses of dimethylamine and dimethylammonium chloride do you need to prepare 7.00 L of pH = 12.00 buffer if the total concentration of the two components is 0.500 M? Mass of dimethylamine = Mass of dimethylammonium chloride =
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Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
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Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
A pH buffer is a solution that resists changes in pH when acids or bases are added to it—typically, a solution of a weak acid and its conjugate base. What masses of dimethylamine and dimethylammonium chloride do you need to prepare 7.00 L of pH = 12.00 buffer if the total concentration of the two components is 0.500 M?
Mass of dimethylamine =
Mass of dimethylammonium chloride =
(the mass of dimethylamine is correct but the mass of dimethylammonium chloride is wrong)
![Ratio of (CHala NHe ce
O.0537
(人
0.500M- (H3)]
subslitute Mie uceler e!
0.500m -
0.0537
0.500M -L ((Hs)a NH]
O. 0537 (H2),NH
0.500M
(CH
Oo5oo m
0.475 M
ミ
(1+ 0.053)
(C(H2)2 NH
0.475 M
molari ty =
moles = volume.
Moles f dime Hyl amine =
O.475 mol x 7.00L
3.325 moe
mass of (CH32 NH= 3.325 mol x 45 9/mol= 150g
moles q (CHolaANHa
0.025molx7.00L=0.17S mol
0.175 mol x81-59/mol =
14.39
mass =
Hence, massf dimethylamine =
mass of dimethyl ammoniom chloide
150J
14.39
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