Explain the difference between the law of multiple proportions and the law of definite proportions?

1024

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

791

how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2602

Why USP put two methods for tapped density? When I should use each one?

3142

What is a difference between potency and purity?

1221

What is specific conductivity?

1098

What is kentchin? Is it real?

1052

Atactic polypropylene is always produced with the [cp2zr(r)]+ catalyst. Explain this on the basis of molecular-level interactions. : Polymer Chemistry

1091

In Dissolution Test why limit is define Q+5% what is the role of +5%.

3103

Protactinium-233 is used in the thorium fuel cycle. Explain how this cycle operates and its potential benefits in nuclear energy production.

679

What is the composition of ferroin?

1098

However ozone is heavier than oxygen still ozone is up there in sky why?

1072

How is hardness of water caused?

1132

For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1907

What can you contribute to the company?

2641