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Hi. I''m in year 11 and writing a chemistry report on the concentration of HCl in brick cleaner. The product I''ve chosen is a 20L solution of HCl, 30% HCl. I have to find the conc
What is this characterisation all about?and how do you do it using DNPH?
Potassium permanganate is prepared from pyrolusite (MnO 2 ) . Pyrolusite is fused with KOH in the presence of atmospheric oxygen or an oxidising agent like potassium nitrate or po
Q. Describe about Nuclei and Radioactive Decay? Dalton consideration that atoms were unchangeable. But scientists in the late nineteenth century began to notice that some eleme
What is heat atomisatin? Solution : Heat of atomisation or enthalpy of atomisation is the energy required to dissociate one mole of a given substance into atoms.
Drying of Organic Substances- purification of organic compounds Several solids are dried first by pressing them gently in between folds of filter papers. Compounds that neither
Aromatic compounds are compounds having one or more benzene rings in it . These compounds satisfies the huckel''s rule. Huckel''s rule:- Compounds contain 4n+2 pi electrons are ar
Overall reaction is H+ + I- +H2O2 -> H2O +HIO. If you wanted to increase the rate of the overall reaction, would it be better to increase the concentration of H+ or I-. Why?
Q. Magnetic Properties of f-block element? You have learnt in the preceding unit-that paramagnetism is related with the presence of unpaired electrons in a substance. The actin
How does the composition of RNA vary from that of DNA, and how does that affect the chemical stability of the molecule?
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