Practice Problem 1: The concentration of Ca² and Mg2+ ions in water is determined by titrating 20.00 mL of a sample with EDTA solution, 3.51 mL being required. If the EDTA solution is 1.00 x 10-2 M, what is the molarity of M²+ in the sample? 2+
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.
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of solvent, and so forth.
2+
Practice Problem 1: The concentration of Ca²+ and Mg2+ ions
in water is determined by titrating 20.00 mL of a sample with
EDTA solution, 3.51 mL being required. If the EDTA
solution is 1.00 x 10-2 M, what is the molarity of M²+ in
the sample?
Answer: 1.76 x 10-³ mol/L
Practice Problem 2: Determine the hardness of the sample
from practice problem 1 in mg of CaCO3 per liter. What is
the degree of hardness?
Answer: 176 mg/L, hard
Practice Problem 3: A 1.56 M solution of Mg(OH)2 in water
has a density of 1.12 g/cm³. Calculate the mass percent of
Mg(OH)2 in the solution. Remember: Mass % = mass of
solute / mass of solution.
Answer: 8 12 %](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7bc30bfd-54a4-45be-8be6-a7bac17a47af%2Fe91feefa-1f6b-4847-9d36-312976c46658%2Fuqh1seq_processed.jpeg&w=3840&q=75)
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