What hazard class does Sulfiric acid go in Class 8 or 9?
Sulfuric acid is Class 8 Corrosives. Class 9 is for hazardous materials that do not meet the definitions of any of the other Classes. ...
Asked in Organic Chemistry, Chemistry
How can we Prepare p-nitro acetanilide from acetanilide?
The amide group on acetanilide is an ortho/para director, so a simple nitration should work: a mixture of sulfiric acid and nitric acid should be sufficient. Afterward, separation of the ortho and para compounds (by column chromatography, probably) would be necessary. ...
What causes a chemical change to limestone?
Limestone is calcium carbonate, CaCO3. The problem with carbonates is that, in acidic environments (such as acid rain), they tend to decompose to form a salt, water and carbon dioxide gas. For instance, if you add sulfiric acid, a common component of acid rain, to calcium carbonate; CaCO3(s) + H2SO4(aq) > CaSO4(s) + H20 (l) + CO2 (g) ...
Asked in Titrations
Indicators used in acid base titration?
It depends on the acid or base used. For strong acid vs. strong base, phenolphthalein can be used as indicator. For strong acid vs. weak base, methyl orange can be used as indicator. For weak acid vs. strong base, phenolphthalein can be used as indicator. ...