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-completion OPT is limited to 20 hours per week while school is in session and the student still has coursework to complete. Full-time employment can be requested for pre-completion OPT done during official school breaks. For post-completion OPT, a student must be employed for at least 20 hours per week.