Recent content by bhuwana65

For Class XII students ,I am conducting Qualitative salt analysis.While analysing various salt mixtures we had a problem with a particular mixture It was Leadnitrate+Calcium carbonate. The mixture does not dissolve in Cold Water/Hot water/Cold dilue Hcl/Hot Dilute Hcl.What i mean we do not get...

Dear all, Thanks a lot,my experiment withn ammonia preparation went off suceesfully and i could also perform fountain expt. bhuwana

can anybody explain to me in simple terms "what is amu" and how it is related to at.weights as i have to explain this to group of students of grade X

Can anybody suggest a site which give details of various quantum numbers and order of filling up the orbitals (for Grade 11 students) bhuwana bhuwana65@yahoo.com

Thanks for your prompt replies . My replies as below : 1) since water is produced during the reaction I did not add water . If water is to to be added please advice on the proportion to be added. 2) the presence of ammonia was tested using red litmus paper which turned blue initially ...

Hello , We tried to demonstrate preparation of Ammonia by mixing Ammonium Chloride and Calcium Hydroxide in round bottom flask mixed in the proportion of 2:3 . The flask was in a slanting position with the delivery tube attached to a decicator with Calcium Oxide for drying the gas. A Flask...