iron becomes passive due to formation of fe3o4 and a coating layer is formed on the surface.
Nitrous Oxide (N2O) gas
You get a pretty blue/grey precipitate.
It fizzes
NIitration on the meta- position of benzoic acid will happen.
Nitric acid (HNO3), also known as aqua fortis and spirit of nitre, is a highly corrosive and toxic strong mineral acid which is normally colorless but tends to acquire a yellow cast due to the accumulation of oxides of nitrogen if long-stored. Ordinary nitric acid has a concentration of 68%. When the solution contains more than 86% of it, it is referred to as fuming nitric acid. Depending on the amount of nitrogen dioxide present, fuming nitric acid is further characterized as white fuming nitric acid or red fuming nitric acid, at concentrations above 95%. Nitric acid is also commonly used as a strong oxidizing agent.
In a fume hood, using gloves, add acids slowly.
a burette
Add concentrated sulphuric acid to the mixture
nothing
hoh
add conc. Nitric acid. tellurium will get dissolved.
NIitration on the meta- position of benzoic acid will happen.
Nitric acid (HNO3), also known as aqua fortis and spirit of nitre, is a highly corrosive and toxic strong mineral acid which is normally colorless but tends to acquire a yellow cast due to the accumulation of oxides of nitrogen if long-stored. Ordinary nitric acid has a concentration of 68%. When the solution contains more than 86% of it, it is referred to as fuming nitric acid. Depending on the amount of nitrogen dioxide present, fuming nitric acid is further characterized as white fuming nitric acid or red fuming nitric acid, at concentrations above 95%. Nitric acid is also commonly used as a strong oxidizing agent.
In a fume hood, using gloves, add acids slowly.
Nitric acid is very corrosive and a very strong acid. You can mix in water but remember add acid to the water and not water to the acid. When mixed with concentrated sulfuric acid it forms an excellent nitrating mixture for organic compounds. When doing a chloride titration with Silver Nitrate, Nitric acid is used to acidify and help the titration. There are many other uses also which involve mixing chemicals with nitric acid.
Surface tension supports the filings in the same way as a pond skater. Add a drop of detergent and the meniscus is broken down and the filings fall to the bottom
a burette
Add concentrated sulphuric acid to the mixture
Iron or steel
Use a magnet to remove the iron filings. The add water to dissolve the salt, and the aluminum filings will settle to the bottom of the container. Pour that salt water into a pan, heat it and evaporate the water, leaving the salt in the pan.