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.
In Your ToolBox: Pre-Tests. The most common form of preassessment is a pencil and paper test or quiz such as an end of. chapter or end of unit test administered at the beginning of the instructional sequence. The. primary purpose of this type of instrument is to gather information about a student's readiness.