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Why we don't add Hcl, HNO3, H3PO4 in residue on ignition, why we add H2SO4
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Because sulphates are more stable at 800 degrees when compared with chlorides and nitrates
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What is UV cut off?
why water content test performed
Why KBr pellet is used in IR?
what is the difference between heavy metals and sulphated ash
In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]
If compound Pka is 5 then which buffer you will select ?
Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?
on the basis of bcs class how to proceed the solubility?
Why dst is used in kf for factor determination less than 1
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What is difference between Primary and secodary reference standard?
Give me details about dissolution , with name ?
why are not used methonol in kf titrator to find out water content in ketones?
Organic Chemistry 
