16. Perform all of the following calculations. a) To simulate blood conditions, a phosphate buffer system with a pH = 7.40 is desired. What mass of Na₂HPO4(s) must be added to 0.500 L of 0.10 M NaH₂PO4(aq) to prepare such a buffer? Assume the Na2HPO4(s) added does not change the volume of the buffer significantly. Draw a picture of the buffer system to assist you. K₁ of H₂PO4 = 6.2 × 10-8 at 25°C b) The K₂ of H3PO4(aq) is 7.6 × 10-3 at 25°C. Predict whether a solution of NaH₂PO4(aq) is relatively acidic or basic, using any information in Part a) to assist you. No guessing. Show appropriate calculations or write a detailed explanation. Kw 1.0 10-14 at 25°C
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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