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-cum is the pre-ejaculate fluid that can be released from the penis during sexual activity. It is usually released before the male reaches orgasm, which results in the ejaculation of semen.Pre-cum prepares the urethra for the semen and helps in lubrication during sexual intercourse.ince the pre-ejaculate can contain sperm, a pregnancy can occur if the man's pre-cum comes in contact with the woman's vaginal canal. However, there is inconclusive evidence as to where the sperm in the pre-ejaculate comes from.