Which of the Following Equilibria Represents the Second Ionization Step

question 121

Multiple Choice

Which of the following equilibria represents the second ionization step of H₃PO₄?

• A) H₃PO₄(aq) + H₂O(l) ⇌ H₂PO₄^-(aq) + H₃O⁺(aq)
• B) H₃PO₄(aq) + 2H₂O(l) ⇌ HPO₄^2-(aq) + 2H₃O⁺(aq)
• C) H₂PO₄^-(aq) + H₂O(l) ⇌ HPO₄^2-(aq) + H₃O⁺(aq)
• D) HPO₄^2-(aq) + H₂O(aq)⇌ PO₄^3-(aq) + H₃O⁺(aq)
• E) H₃PO₄(aq) + 3H₂O(l) ⇌ PO₄^3-(aq) + 3H₃O⁺(aq)

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Definitions:

Market Portfolio

An investment portfolio that ideally includes all available assets in the market, weighted by their market capitalization, aiming to mimic the market's overall returns.

Discount Rate

The interest rate used to discount future cash flows to their present value, crucial in determining the value of investments.

Real Risk-free Rate

The theoretical return on an investment with zero risk, taking into account the effects of inflation, thus representing the true purchasing power of the investment return.