Tooth Enamel Is Composed of the Mineral Hydroxyapatite

question 48

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?

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Definitions:

Three Payments

A payment plan that divides the total amount owed into three separate payments over a specified period.

Second Payment

The subsequent payment made after the first in a series of payments, often in the context of a financial transaction or loan.

Compounded Semi-Annually

Interest on an investment or loan that is calculated twice a year and then added to the principal, affecting the overall amount on which future interest is based.

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