Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong?
- 5 Answers
- 13461 Views
- Claris Otsuka, Ranbaxy, I also Faced
- E-Mail Answers
Answer Posted / phani kumar
In 1molar NaOH solution we take 42gms NaOH in 1000ml water.why because NaOH pellets having 97% purity
| Is This Answer Correct ? | 26 Yes | 6 No |
Post New Answer View All Answers
Why six unit used for precision?
how require to set assay concentration for standard and sample?
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
from where i get mortar pastle for glass bottle crush? it's required for testing of it?
if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?
What is the diffrence in japan mkt requirement in analytical method validation over US?
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
why we are using benzene, anyline in acetic anhdride assay titration method?
iam usig ph buffers merk. manually how to prepare ?
If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
in which situation require to change rs specification?
How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
how can I make the copper get white bye any salt or acit?
What are modes of quantification in related substances
