What information is needed to calculate the pH of a solution? A. The number of hydrogen atoms per unit of the acid compound
B. The dissociation constant of the acid in solution
C. The molar concentration of the hydrogen ions
D. The molar concentration of the hydroxide ions​

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.