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)

Calculate the value of variables within proportional relationships.

Understand the concept of the Consumer Price Index (CPI) and its calculation.

Analyze financial scenarios involving currency conversions and their impacts.

Apply knowledge of ratios and proportions to evaluate financial investments.

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Definitions:

Bystanders

Individuals who are present at an event or situation but do not take part in it, often discussed in the context of emergency or crime scenarios.

Individual Bystander

A person who is present at an event or incident but does not take part or intervene, often discussed in the context of emergency psychology and social psychology.

Personally Intervening

Personally intervening means taking direct action or involving oneself directly in a situation, typically to influence the outcome or to provide assistance.

ATM Machine

An automated teller machine, a banking terminal that allows clients to conduct transactions, such as cash withdrawals, without the need for a human clerk.