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.
A preamp is a âpre amplifierâ and, as the name suggests, it prepares the signal coming from a pickup or microphones for further amplification. It can blend multiple signals into one. Answering the question of whether or not you need a preamp really comes down to the output of your pickup or microphone.