Pondus was created in 1995.
The concept of pH was first introduced by Danish chemist S L P Sorensen in 1909. pH is claimed to have come from pondus hydrogenii, potentia hydrogeni (Latin) potentiel hydrogene (French) and potential of hydrogen (English). it stand for POTENTIAL HYDROGEN.
hydrogenii.
The Latin root is 'pondus' meaning to weigh
as a suffix, hydrogenii. Alone, hydrogenium. Latin name of hydrogen is HYDROGENIUM
pH come from "pondus hydrogenii" or "potential hydrogen." It measures the concentration of hydrogen ions. Mathematically, pH = -log[H+] Therefore, to answer your question, a pH of 3 will have a 10-3M of hydrogen ions where as the pH 9 solution will have a 10-9M of hydrogen ions. The lower the pH the higher its H+ concentration and the more acidic it is. (A pH of 9 is actually basic.)
potential hydrogen Presence of active Hydrogen Potentia Hydrogenii (Latin: hydrogen power) Hydrogen Strength in the given substance just to measure its acidity or alkalinity Puissance de hydrogen
The adjective "ponderous" (weighty, bulky) is an extension of the same root as "ponder" (to weigh in one's thoughts, or consider).(Latin pondus - weight)
ponderous (weighty)
Pend- is the Latin root of the English verb "pondered." The English active past tense ultimately traces back to the Latin noun pondus ("weight," from the root ponder-), the verb pendere ("to hang," "to suspend," "to weigh" and, figuratively, "to ponder") and the root pend- ("hang"). The pronunciation will be "pend" in Church and classical Latin.
Yes, it would effect the enzyme as i would become acidic. If it becomes too acidic then the shape of the active site will change and the substrate will no longer fit and therefore no reaction can take place. A low pH will denature the enzyme ( cause the protein structure to change shape)
Lb is an abbreviation of the Latin word for pound. The original Latin word for the pound weight was libra pondo.The Latin word libra means 'balances, scales' (as in the astrological sign for the constellation Libra, which can be described as looking like a set of balance scales). The word pondus, meaning weight, is the original Latin for the English word 'pound.' So libra pondo meant 'a balance scale weight (of a Roman pound)'. A Roman pound weighed about 327 grams. [The British pound became standardised at about 1/3rd heavier than the ancient Roman pound]In time libra pondo became shortened to just libra, i.e. a quick way of saying 'libra pondo.' Then libra was abbreviated to lb, still meaning pound or pounds. Lbs is the logical English plural of lb, but either lb or lbs can be used.