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ACTIVITY Our body has mechanisms to compensate for the imbalance in blood pH. When this does not occur, it may be a sign of serious illness, such as diabetes. And also, in heart surgery, the patient's breath is held by machine heart-lung. Thus, it is necessary to measure the pH to balance acid-based blood. Develop a research on the importance of pH and its applications through posters and disclose the result. To learn more: www.ucs.br / CCET / defq / or naeq http://quark.qmc.ufsc.br/qmcweb The pH acronym refers to a scale used to indicate whether a solution or material is acidic, basic or neutral. The letter p comes from the Danish word potenz, power (exponent) and H represents hydronium ions H The or H As the concentrations of ions H (or OH ) of the solutions are very small, they are expressed in potencial negative base 10. For example, one solution has 0.000001 mol / L ion H mol / L ion H However, to work with these negative powers, the chemical- cos, biologists, physicians have had some difficulty. Therefore, Sörensen proposed using a mathematical device, the logarithm. For mathematical definition: the logarithm of a positive real number and base 10 is the exponent x, which should raise to give 10, namely: Applying the notation Sörensen, we can define the pH (hydrogen potential) as: pH = -log H or pOH = -log OH Pure water dissociates producing equal concentrations of ions H ions and OH The 25 The C, the concentration of ions (H mol / L. Thus, we can construct a pH scale usually presented ing values ranging from 0 to 14.
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AKTIVNOST Naše tijelo ima mehanizme kako bi se nadoknadila neravnoteže u pH krvi. Kada se to ne dogodi, to može biti znak ozbiljne bolesti, poput dijabetesa. I također, u operacije srca, pacijentova daha drži stroja srce-pluća. Dakle, potrebno je izmjeriti pH ravnotežu kiselina-based krv. Izraditi istraživanje o važnosti pH i njezine primjene putem plakata i objaviti rezultat. Da biste saznali više: www.ucs.br / CCET / defq / ili naeq http://quark.qmc.ufsc.br/qmcweb PH akronim se odnosi na skali koristi se naznačiti je li rješenje ili materijalni je kisela, osnovni ili neutralan. Pismo p dolazi od danske riječi potenz, snage (eksponent) i H predstavlja hydronium ioni H ili H Kao koncentracija iona H (ili OH ) od rješenja su vrlo mali, oni su izraženi u potencial negativnom bazi 10. Na primjer, jedno rješenje ima 0.000001 mol / L ion H , odnosno, 10 mol / L ion H Međutim, za rad s tim negativnim silama, kemijsko- Cos, biolozi, liječnici su imali neke poteškoće. Stoga, Sorensen je predložio u matematičkom uređaj, Logaritam. Za matematičku definiciju: logaritam realnog pozitivnog broja i baza 10 je eksponent x, što bi trebalo podići dati 10, a to su: Primjenjujući oznake Sorensen, možemo definirati pH (potencijal vodika) kao: pH = -log H ili Poh = -log OH Čista voda dissociates proizvode jednake koncentracije iona H Ioni i OH . 25 C, koncentracija iona (H mol / L. Dakle, možemo konstruirati pH ljestvicu obično predstavljena ing. vrijednosti u rasponu od 0 do 14.