NaOH + Na2HPO4 --> Na3PO4 + H2O (aka tribasic sodium phosphate) Of course, once all the hydrogen is consumed there is no further reaction with sodium hydroxide. In general, adding sodium hydroxide to a solution of any of the sodium phosphates will change the pH.
Pre-operative adjective Referring to the logistics of preparing for a surgical procedure/operation. See Pre-op time noun. 1. A popular term for all forms of careâeg, medication provided to a Pt prior to a surgical intervention.
Pre-kindergarten (also called Pre-K or PK) is a classroom-based preschool program for children at or below the age of five in the United States, Canada and Turkey (when kindergarten starts). It may be delivered through a preschool or within a reception year in elementary school.