Answer Posted / ramesh.s

Molecular weight of Disodium tartarate is (C4H4Na2O6.2H2O)=[(12*4)+(1*4)+(23*2)+(16*6)+(2(1*2)+16)]=230
Disodium tartrate is having two water molecules(2H2O)=(2(1*2)+16)=36
So that % of water content is (36/230*100)=15.66%

which are the sizes of capsules?

956

---

how to get accurate result for Residue on evaporation in purified water

1644

---

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2157

---

WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2128

---

in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

747

---

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2715

---

What is viod volume and peak purity in HPLC?

2879

---

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

3477

---

[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

791

---

Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1679

---

Which parameter require to do for analytical method equivalency?

770

---

Why are use silicon oil mr?

1198

---

could negative ions be produced by bombardment process in mass spectrometry?

1773

---

2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2214

---

why we use a particular hplc column for a particular compound give reasons?please

2748

---