Answer / praveen kumar (ipca_ranu)

Pure water has a neutral pH=7. Because of this, the concentration of acid in solution = concentration of base in solution. Therefore, [H3O+]=[OH-]. We have to memorize that Kw=10^-14, but once we memorize this it becomes clear that for neutral water [H3O+]=[OH-]=10^-7 because the product of both equals Kw. Hope this helps!

Praveen kumar
IPCA
Sr. Excutive

state the principle of gas chromatography?

5 Answers  

---

In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?

1 Answers   Reddy Labs,

---

what does pH stand for?

4 Answers   Orchid,

---

what is the origin to prepare standard operating procedure

0 Answers  

---

I have 1 gram of Diphenylamine and want to make a 10,000 or 1000 ppm solution in methanol. How do I make this?

9 Answers   Midas Technologies,

---

---

analytical method validation require to with respect to release specification or shelf life specification?

0 Answers  

---

What is the calibration of uv process and preparation

0 Answers   Aurobindo,

---

What is difference between Potency & purity

3 Answers  

---

What is the difference between chiral cel OD-H & OD-RH ?

3 Answers   Aptuit Laurus,

---

What is difference btw UV detector & RID detector

4 Answers  

---

what is the extinction coefficient for Indomethacin or at 319nm wave length.

0 Answers   GSK GlaxoSmithKline,

---

what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

0 Answers   Graviti Pharmaceuticals,

---