Why sodium hydroxide used for maintain pH of phosphate buffer

1820

What is bed worth rule? : Electrochemistry Corrosion

508

How to start the dissolution development for unknown tab?

1137

Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?

2450

Why six unit used for precision?

796

What are the constituents of cements?

584

What is photoelectric colorimeter?

623

State lambert’s law.

769

in gas chromatography what is the difference between gas flow rate and average linear velocity ?

1930

Related substance method equivalency on control sample or spiked sample?

297

Tell me something about Vitamin A test method by HPLC

2200

What kinds of structural changes accompany bond-breaking and bond-forming in olefin polymerization? : Polymer Chemistry

1220

GIVE FTIR SAMPLING ASSESORY NAME.

1988

Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and appearance? suggest?

1403

4.0 liters of oxygen are mixed with 8.0 liters of nitrogen. Identify the solute and solvent in this mixture:

588