Normal saline has to be in harmony with our bodies which is on the acid end rather than alkaline.
EDIT NOTES: Ok Mr Chemistry man who gave me a negative - as I so stated Normal Saline (typically given intervenously to ill people) has to be in harmony with the body WHICH IS ON THE ACIDIC END......
WHAT IS INCORRECT in this?
http://www.earthtym.net/ph-intro.htm
"The human body is SLIGHTLY acidic when it is in a state of health. This limits fungal and bacteria growth on the skin or in the body. Some areas of the body are more acidic than this to address local issues and microbial populations. Medical tests for pH level are usually a reference of the BLOOD pH level."
http://www.newton.dep.anl.gov/askasci/chem00/chem00478.htm
Body fluids such as blood has a pH that is slightly acidic (probably about 5.7). One would not want to change that because the change could have serious health consequences, so the saline is buffered to a slightly acid pH.
2006-11-28 10:25:03
·
answer #1
·
answered by tatt_bratt 7
·
1⤊
1⤋
Oh dear! you've all failed GCSE Chem!
pH= neg log(base10) of [H+] concentration
since conc. in pure water = 10^-7*
this gives pH=7. Sodium and chlorine are equally electro(+/-) (unlike say sodium acetate)
This means there is no selective removal of H+ or OH- ions from the solution, so the solution remains pH=7=neutral.
In the case of sodium acetate, there is a tendency for the equilibrium to move toward the formation of acetic acid, which removes H+ ions from solution,in doing so more H2O molecules dissociate, making the pH>7=Alkali
The general rule is:
Strong Acid+Weak Base;pH<7
Weak Acid+ Strong Base:pH>7
Strong+ Strong: pH=7
*remember 10^-6>10^-7>10^-8 etc
2006-11-28 11:41:00
·
answer #2
·
answered by troothskr 4
·
0⤊
3⤋
Think about the chemical reaction in producing saline. (It's just salt and water)
NaCl + H20 --> HCl + NaOH HCl has a stronger acidity than NaOH's basicity giving a pH lower than 7. It is convenient for us as it does act as a natural defense against pathogens.
2006-12-01 08:10:49
·
answer #3
·
answered by Jennifer C. 2
·
0⤊
0⤋
you may no this or not.. but 14 is a basic and 1 is acidic... pure water is 7 but since saline is a salt and salts are acidic, the pH becomes lower than normal.. making water for example acidic and lower than 7
2006-11-28 10:21:57
·
answer #4
·
answered by sprtzgrl380 3
·
0⤊
1⤋
Saline is salt water.. I would assume the salt has an impact on pH.
2006-11-28 10:19:45
·
answer #5
·
answered by Mike 3
·
0⤊
0⤋
By 'normal' saline, I assume you mean physiological saline.
The pH (note the cases not ph) expresses the amount of hydrogen ions in the solution.. There are equal numbers of the sodium and the chlorine but they have different atomic masses.
This gives different numbers of ions hence the different pH.
2006-11-28 10:47:33
·
answer #6
·
answered by beech7wood2000 3
·
0⤊
3⤋
Oceanic and estuary waters have a pH of 7 to 8.6, therefore veering towards the alkaline end of the scale. I don't know why 0.9% saline would have a pH veering towards acidosis!
2006-11-28 10:20:26
·
answer #7
·
answered by Anonymous
·
0⤊
2⤋
To make 100ml: 900mg NaCl 1gm Evans blue powder enough water to make a final volume of 100ml
2016-05-22 23:25:30
·
answer #8
·
answered by ? 4
·
0⤊
0⤋
it means its acidic/alkaline i cnat remember which. grrr my biology teacher gonna be mad at me now.
2006-11-30 13:16:15
·
answer #9
·
answered by Anonymous
·
1⤊
1⤋
It is more alkaline.
2006-11-28 10:33:26
·
answer #10
·
answered by CLIVE C 3
·
0⤊
4⤋