Multiple Choice
The pH of 0.010 M H3PO4(aq) is 2.24.Estimate the concentration of HPO42- in the solution.For H3PO4,the values of Ka1,Ka2,and Ka3 are 7.6 * 10-3,6.2 * 10-8,and 2.1 *10-13,respectively.
A) 5.8 * 10-3 M
B) 7.6 * 10-3 M
C) 0.010 M
D) 6.2 * 10-8 M
E) 2.1 *10-13 M
Correct Answer:
Verified
Correct Answer:
Verified
Q5: Estimate the pH of 10<sup>-</sup><sup>7</sup> M HClO<sub>4</sub>(aq).<br>A)
Q17: Which of the following 0.10 M aqueous
Q84: The pH of 0.10 M solution and
Q85: The pH of 0.10 M pyridine(aq) is
Q89: What is the molarity of OH<sup>-</sup> in
Q92: Which of the following is the weakest
Q94: If <span class="ql-formula" data-value="\alpha"><span class="katex"><span
Q102: In a solution labeled "0.10 M HNO<sub>3</sub>,"
Q141: Calculate the equilibrium constant for the
Q246: Of the following, which is not a