what is ph level in man?
602949
Depends where you look for, in the stomach is about 2 while in the mouth is slightly basic (about 6) due to the pH buffering power of the saliva. In general the overall pH is about 5.5 (same as many soaps for delicate skin). This is not a comprehensive answer because for example the skin pH is influenced by many external factors (bacteria, cleanliness, pH of sweat etc.)
879567
"The normal pH of human arterial blood is approximately 7.40 (normal range is 7.35-7.45), a weak alkaline solution. Blood that has a pH below 7.35 is acidic, while blood pH above 7.45 is alkaline. \n\nBlood pH along with arterial carbon dioxide tension (PaCO2) and HCO3 readings are helpful in determining the acid-base balance of the body. The respiratory system and urinary system normally control the acid-base balance of blood as part of homeostasis."\n\nSo basically, the body has a very narrow pH range it must maintain in order to be considered normal.  The body has a natural acid (carbon dioxide) and a natural base (bicarbonate) that it uses to maintain a steady pH.  A pH above or below the normal range can result in potentially life-threatening conditions.
1085742
When the stomach secretes the Hydrochloric Acid, it has a pH of 0.8 (yes, it can go below 1). The acid is then diluted in the stomach so that the pH settles at between 2 and 3.\n\nFreshly secreted mouth saliva has a slightly acidic pH of 6.4 to 6.9, however that is altered by different foods and drink. e.g. Coke would increase its acidity.\n\nThe pH in the small intestine varies.\nIn the duodenum it is 6 to 6.5\nBeyond the duodenum lies the jejunum and ileum which have a pH of 7.5\n\nThe optimum temperature for mammalian enzymes is 40 degrees C.\n\nI hope this helps. Good luck with your homework.
610740
Your blood keeps its pH range stable.
982524
7.\nclick here:http://en.wikipedia.org/wiki/PH
452542
well, i don't know  where to find a quiz, however i am a respiratory therapist and use these everyday\n\nhere are some ideas\nokay normal ph in your body is 7.35-7.45 <7.4 is acidic, and >7.4 is basic (alkalotic)\n\nthink of hco3 (bicarb) your buffer, it raises the ph\n\nthink of co2 acidic.. it lowers the ph\n\no2 levels are normal if they are >80 (remember copd pts will have 50's and that will be normal\n\nok... \nexample 7.30ph, 55 pco2, 80 po2, and 29 hco3\nthat is an acidic ph.. its acidic because the person isn't blowing off co2, the normal co2 is 35-45, its 55\n\nthe hco3 isn't raised up high enough to buffer the acidity.. so the blood gas is uncompensated, meaning the hco3 and co2 will usually compensate for one another.\n\nthis gas is an u ncompensated respiratory acidosis, with normal oxygenation\n\nnext gas 7.38ph, pco2 is 50, hco3 is 40, and po2 is 50\nthis is a normal ph, with elevated pco2, the ph is an acidic ph.. however in normal level, notice the hco3 is elevated.. it compensated for the raised co2\nalso notice the po2 this is normal for co2 retainers (copd patients). \n\nthis gas is a compensated respiratory acidosis with hypozemia (however normal for the copd patient)\n\nokay next gas\n7.50ph, with 35pco2, hco3 42 po2 is 70\nthis is an uncompensated metabolic alkalosis.. the  pco2 is normal.. not compensating..\n\nnext gas 7.20ph, 5 pco2, hco3 10\nthis is an partialy compensated metabolic acidosis.. meaning that the pco2 is trying to make up for the loss of bicarb.. this is a blood gas that you will find with a diabetic keto acidosis patient.\n\nnext gas 7.48ph, pco2 25 hco3 20\nthis is a gas that is uncpmpensatted respiratory alkalosis.. t his patient might have a respiratory ailment that is causing them to hyperventalate... blowing off too much co2\n\nthe hco3 will trend down to compensate\ni hope this helped
455471
pH (potential hydrogen) is a measure of the activity of hydrogen ions (H+) in a solution and, therefore, its acidity or alkalinity. In aqueous systems, the hydrogen ion activity is dictated by the dissociation constant of water (Kw = 1.011 × 10−14 at 25 °C) and interactions with other ions in solution. Due to this dissociation constant a neutral solution (hydrogen ion activity equals hydroxide ion activity) has a pH of approximately 7. Aqueous solutions with pH values lower than 7 are considered acidic, while pH values higher than 7 are considered alkaline..\n\npH = -log(concentration of H+)\njust use the equation to figure it out.\nhttp://en.wikipedia.org/wiki/PH
944314
The pH scale goes from 1-14, with 1 being the most acidic, 14 being the most basic, and 7 being neutral. \n\nSince a pH of 9 is closer to neutral than extremely basic (pH = 14), I would call the window cleaner weakly basic.
31887
Since orange juice is about 2.8 on the pH scale, an orange is also about 2.8.  See reference here: http://www.mpcfaculty.net/mark_bishop/pH_equilibrium.htm\nHope that helps!
482772
Ph is A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14.
710860
The American educational system is doomed.\n\nb) base is the best answer. The more basic, the higher the pH. More acidic=lower pH. Neutral=pH of 7 (pure water). Lemon juice would have a pH of 2 or so. Hydrochloric acid is near zero. Drain cleaner is like 13.\n\nAt least they still teach people how to use computers!
224478
The pH of a solution can be measured by titration, which consists of the neutralization of the acid (or base) by a measured quantity of base (or acid) of known concentration, in the presence of an indicator (a compound the color of which depends on the pH). The pH of a solution can also be determined directly by measuring the electric potential arising at special electrodes immersed in the solution.
1027845
Roughly 6.9, since you can't raise the pH of pure water above 7 by adding an acid.
179057
It's not C.  An increase in pH makes a solution more alkaline, meaning less H+ in the fluids.\n\nI'm going to say A here because a rise in pH is associated with increased O2 binding to hemoglobin.
882738
The pH scale is logarhytmic- it goes up by powers of ten.\n\nFrom pH 2 to pH 1, there is 10 times the H+ concentration.\nFrom pH 3 to pH 1, there is 100 times the H+ concentration.\nAnd so on.\n\nTo answer your question, the pH will become more acidic by 3 points.
860365
use the equation  pH= -lgKa+ lg( salt/acid)\n(this equation only applies for buffer system)
117720
Essentially pH is important in how reactions happen, and in a system as precise as the human body, any small change can have an effect on how the chemical reactions occur.  Enzymes might not work anymore, your blood cells might not be able to get as much oxygen, etc.