Solution Found!
A buffer is made by dissolving H3PO4 and NaH2PO4 in water.
Chapter 14, Problem 99CQ(choose chapter or problem)
A buffer is made by dissolving H3PO4 and NaH2PO4 in water. (10.6)a. Write an equation that shows how this buffer neutralizes added acid.b. Write an equation that shows how this buffer neutralizes added base.c. Calculate the pH of this buffer if it contains 0.10 M H3PO4 and 0.10 M 2PO4?; the Ka for H3PO4 is 7.5 × 10?3.d. Calculate the pH of this buffer if it contains 0.50 M H3PO4 and 0.20 M H2PO4?; the Ka for H3PO4 is 7.5 × 10?3.
Questions & Answers
QUESTION:
A buffer is made by dissolving H3PO4 and NaH2PO4 in water. (10.6)a. Write an equation that shows how this buffer neutralizes added acid.b. Write an equation that shows how this buffer neutralizes added base.c. Calculate the pH of this buffer if it contains 0.10 M H3PO4 and 0.10 M 2PO4?; the Ka for H3PO4 is 7.5 × 10?3.d. Calculate the pH of this buffer if it contains 0.50 M H3PO4 and 0.20 M H2PO4?; the Ka for H3PO4 is 7.5 × 10?3.
ANSWER:A. H3PO4 + HCl ? H2PO4- + H2O
B. NaH2PO4 + NaOH ? Na2HPO4 + H