Bromocresol green Yellow to blue during weak acid to strong base( 5.70 pH, 9.8 mL), blue to yellow during weak base to strong acid( 3.57 pH, 8.1 mL). Phenolphthalein Clear to pink during weak acid to strong base (8.15 pH, 10.4 mL), pink to clear during weak base to strong acid (7.78pH, 7.4 mL) Methylamine (CH3NH2) is neutralized by nitric acid in the following reaction: CH3NH3++H20=H3O++CH3NH2 In a titration using this reaction, it takes 43.44 mL of nitric acid to reach the equivale point with a 108.6 mL sample of methylamine. The Kb of methylamine is 4.4x10-44.4×10-4.
Ionic Equilibrium
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.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
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.
![Bromocresol green
Yellow to blue during weak acid to strong base( 5.70 pH, 9.8 mL), blue to yellow
during weak base to strong acid( 3.57 pH, 8.1 mL).
Phenolphthalein
Clear to pink during weak acid to strong base (8.15 pH, 10.4 mL), pink to clear
during weak base to strong acid ( 7.78pH, 7.4 mL)
Methylamine (CH3NH2) is neutralized by nitric acid in the following reaction:
CH3NH3++H2O=H3O*+CH3NH2
In a titration using this reaction, it takes 43.44 mL of nitric acid to reach the equivalence
point with a 108.6 mL sample of methylamine. The Kb of methylamine
is 4.4×10-44.4×10-4.
what indicator (phenolphthalein or bromocresol green) would you pick for this titration?
(Hint: you will need to calculate the pH at the equivalence point.) Explain why you have
chosen as you have, including any ways in which your choice is less than ideal.TO
calculate the pH, you will need the Ka calculation equation, and the Ka.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6bd8de8b-f230-4d16-be3d-cc01e7e7fb83%2F51caef3d-159d-44ec-9f1e-a8982a327a0c%2Frdoa4c_processed.png&w=3840&q=75)
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