Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?

1547

As a researcher working with Protactinium, what areas of study or applications would you be most interested in pursuing, and why?

547

What makes a molecule into organic molecule?

1204

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

2094

why require to do water content for drug product?

798

"Co-polymers" consist of two different monomers ("a" and "b") joined in an alternating fashion (ababab...). Block co-polymers also consist of two different monomers, but in this case blocks of polymer containing only a units are joined to blocks of polymer containing only b units (aaaaabbbbb...). How might block co-polymers be synthesized? : Polymer Chemistry

1070

What is similarity factor and its use in api strength?

1270

What is the min constitutes of haematite ore?

1016

Explain why do some medications contain hcl?

1112

Explain how many moles of hcl are present in .70 l of a .33 m hcl solution?

998

Arrange the following in their increasing polarity order Carboxylic acid, hydroxyl, phenyl, amino and aldehyde

1717

What is chemical oxygen demand?

1023

What is rs test why we are performing rs test?

1824

what are the checklist need to maintain in API manufacturing area as per USP requirements.......?

2814

Why sodium hydroxide used for maintain pH of phosphate buffer

2359