Solved

A 00010 M Solution of a Weak Acid,HA,with Ka = 2

Question 67

Multiple Choice

A 0.0010 M solution of a weak acid,HA,with Ka = 2 * 10-10 produces [H3O+] < 10-6 M.Which of the following equations can be used to determine [H3O+]?


A) The acid is so weak that the pH is about 7.
B) [H3O+]2 + Ka [H3O+] - [HA]initialKa = 0
C) [H3O+] = (Kw + Ka[HA]initial) ½
D) [H3O+] = [HA]initial
E) [H3O+] = (Ka[HA]initial) ½

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q8: The conjugate acid of HPO<sub>4</sub><sup>2</sup><sup>-</sup> is<br>A) HPO<sub>4</sub><sup>2</sup><sup>-</sup>.<br>B)

Q48: The equation that represents K<sub>a2</sub> for phosphoric

Q63: The fractional composition diagram for the amino

Q66: the pH of 0.10 M and 0.40

Q68: Calculate the hydroxide ion concentration for an

Q75: What is the pK<sub>a</sub> of the conjugate

Q126: All of the following 0.1 M aqueous

Q188: What is the [H<sup>+</sup>] for a solution

Q251: Calculate the hydrogen ion concentration for an

Q260: All of the following are Lewis bases