0.646 g of sample containing BaCl2.2H2O (244.26 g/mol) was dissolved and enough potassium chromate was added. After filtering, the precipitate was dissolved in acid and enough KI was added and titrated with thiosulfate. Since 48.7 mL of 0.137 M thiosulfate is used for this, what is the percentage of BaCl2.2H2O in the sample? K2Cr2O7 + 7H2SO4 + 6KI 4K2SO4 + Cr2(SO4)3 + 7H2O + 3I2
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.
1. 0.646 g of sample containing BaCl2.2H2O (244.26 g/mol) was dissolved and enough
potassium chromate was added. After filtering, the precipitate was dissolved in acid and
enough KI was added and titrated with thiosulfate. Since 48.7 mL of 0.137 M thiosulfate
is used for this, what is the percentage of BaCl2.2H2O in the sample?
K2Cr2O7 + 7H2SO4 + 6KI 4K2SO4 + Cr2(SO4)3 + 7H2O + 3I2
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