Answer / umesh patel

its the negative logarithm of Ka(acid constant)
there is a corelation between pH and pKa value as per
handerson equation

Answer / prashant

pKa=-log(Ka)... Ka=Ionisation Constant of Acid

pH=pKa+ Log[salt]/[acid]

Answer / chinna

Pka=-log its negative logarithm of of ka(acidcon constant)
PH=pka+ Log(salt)/(acid)

why we should take dst factor for below 1%moisture samples

0 Answers   Ind Swift Laboratories,

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Principle of HPLC in one sentance

8 Answers   Syngene,

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what is the relation of normality & molarity ? give me formula?

5 Answers  

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what is peak purity and its formula

1 Answers  

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Why potassium dichromate is used in calibration of uv?

0 Answers  

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Why pH range is 1-14 nt more than 14???

3 Answers   IPCA, Lincoln Pharmaceuticals,

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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

0 Answers  

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if out of two set of results of moisture analysis first 1 is passing, second one is failing, is it oos ? or vice a versa first 1 is failing and second one is passing. for information mean value to be reported and in mean value the substance is ppassing, is it oos or normaal mean value to be considered?

1 Answers   JBCPL,

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Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

0 Answers  

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we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?

2 Answers  

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How to calculate mass balance in RS after degradation

1 Answers   Reddy Labs,

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How does HPLC Calculate Void volume?

1 Answers   Lupin,

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