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Dentistry Ms.c.Khadija Najah: Buffer-pH and Acid-Base Balance Quiz

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Dentistry Ms.c.Khadija Najah: Buffer-pH and Acid-Base Balance Quiz

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Questions and Answers

What is the equation for the reaction between an acid and HPO4^-2?

H2PO4- + H+ → HPO4^-2 + H2O

HPO4^-2 + OH- → H2PO4- + H2O

HPO4^-2 + H3O+ → H2PO4- + H2O (correct)

H2PO4- + OH+ → HPO4^-2 + H2O

What is the equation for the reaction between a base and H2PO4-?

H2PO4- + H3O+ → HPO4^-2 + H2O

H2PO4- + Na+ → NaH2PO4

HPO4^-2 + H+ → H2PO4- + H2O

H2PO4- + OH- → HPO4^-2 + H2O (correct)

What is the condition for acidic blood (acidemia)?

Blood pH > 7.8

Blood pH < 6.8

[HCO3-] / [H2CO3] < 20:1 (correct)

[HCO3-] / [H2CO3] > 20:1

What is the condition for alkaline blood (alkalemia)?

[HCO3-] / [H2CO3] > 20:1 Signup and view all the answers

What is the pH range where death can occur?

pH < 6.8 or pH > 7.8 Signup and view all the answers

Which of the following is NOT a benefit of maintaining proper acid-base balance?

Improved immune function Signup and view all the answers

What is the definition of a solution?

A homogeneous mixture of two or more substances Signup and view all the answers

What is the dissolving medium in a solution?

The solvent Signup and view all the answers

What type of solutions are aqueous solutions?

Solutions where the solvent is a liquid Signup and view all the answers

Which of the following is a property of water as a solvent?

It is one of the best solvents for dissolving ionic substances Signup and view all the answers