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Chemistry AllOther (190) 0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O4
1 4018why PH scale range is 14? why it is not less or not greater than 14? solution of HCl or hydrogen containing liquid has a PH. but if the solution is KMnO4 here not hydrogen power does it PH? explain plz....
4 25103why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom.
2 5666To make phosphorus tetraoxide from phosphorus why pure oxygen isn't taken and why mixture of oxygen and nitrogen is taken?
2471why we are carrying standardization of karl fisher auto titrator with water and disodium tartarate.
1 5508
if you have given a blank water how you analyse by general analytical techniques?
in which situation require to take incident in validation?
why octanol used to determine the partition coefficient ?
What is column in chromatography?
Why ph scale range is 14?
What is phase transfer catalyst?
a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?
calibrtion procedue of LC-MS
hi, i want last 10 years ongc exam recruitment papers for subject in chemistry ,genaralknowladge.
analytical method validation require to with respect to release specification or shelf life specification?
How do we fix the sample concentaryion in hplc method development?
why require the ph, buffer during hplc mobile phase?
Why we check moisture,ash & AIA in product
Active Ingredients in septilin ??
Why is mercuric chloride added?