Tooth Enamel Is Composed of the Mineral Hydroxyapatite

question 26

Multiple Choice

Tooth enamel is composed of the mineral hydroxyapatite. It is essentially insoluble in water with K_sp = 2.3  10^-59, but it reacts with weak acids in the mouth as described by one of the reaction equations below. You can determine the equilibrium constant, K, for this reaction from K_sp and K_w (the equilibrium constant for water autoionization) . How do you do this? Ca₅ (PO₄) ₃(OH) (s)  Ca₅ (PO₄) ₃⁺(aq) + OH^-(aq)
Ca₅ (PO₄) ₃(OH) (s) + H⁺(aq)  Ca₅ (PO₄) ₃⁺(aq) + H₂O( )

• A) K = K_wK_sp
• B) K = K_w /K_sp
• C) K = K_sp /K_w
• D) K = K_w - K_sp
• E) K = K_w + K_sp

Recognize the significance of urban-rural differences attributable to various sociological factors.

Analyze trends in economic disparities and their impact on society.

Define and differentiate between ascribed status, socioeconomic status, and other status-related concepts within sociology.

Identify key historical figures and their contributions to the development of sociology.

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Definitions:

Mania

A mental state characterized by elevated mood, energy, and activity levels, often associated with bipolar disorder.

Nursing Intervention

Actions taken by nurses to improve or maintain a patient's health condition, often part of a broader care plan.

Acute Mania

A period of abnormally elevated or irritable mood, arousal, and energy levels that significantly impair functioning.

Disrobed

Refers to the act of removing one's clothing, often implying complete or partial nakedness as a physical state.