Answer / kristine

In this experiment, I am to determine the amount of CaO in
limeston. BUT I don't understnad why I am doing this
procedures.

1. preparation of 0.02M potassium permanganate (to use as
titrant)
2.standardization of potassium permanganate solutions
(WHY?)
3. titrate sodium oxoalate with KMnO4 permanganate (WHY?)

determination of calcium in a limestone

4. sample preparation
5. precipitation of calcium oxalate (WHY?)
6. titrate calcium oxalate with KMnO4 permanganate (WHY?)

how am I suppose to calculate the % of CaO from this
experiment?

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

3 Answers   Aptuit Laurus,

---

How to calculate %w/w and %v/v of a component(or solvent)by NMR

1 Answers   ACME, Vimta Labs,

---

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

1 Answers   Apex, BNM, Ranbaxy,

---

what is peak purity? how may types of methods to determine peak purity?

3 Answers   Mylan,

---

What is the difference between Paddle and Basket Why we are using Basket or paddle in dissolution.

7 Answers   Apotex, Cipla, GSK, Intas, Zydus Cadila,

---

How you start the method development of unknown compound.

1 Answers  

---

What is the procedure for investigation of an OOS (Out of specification) results?

4 Answers   Biocon, Dr Reddys, Reddy Labs,

---

how require to calculate mass balance in related sub?

1 Answers  

---

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

4 Answers   Aurobindo, Meghmani Organics,

---

Weight balance variation limit during analysis

7 Answers   Amneal Pharmaceuticals,

---

why a ph meter require KCL solution for their storing condition?

1 Answers   Aurobindo,

---

why sucrose is used for polarimeter calibration

4 Answers   Sun Pharma,

---