Yellow precipitation shows the deposition of sulphur element.
sodium thiosulphate
Dissolution.
No reaction
There is no reaction.
Pumice does not react with hydrochloric acid.
yes it does..... it also produces an odur which is sulphur from the thiosulphate.
sodium thiosulphate
This is a precipitation reaction.
Dissolution.
No reaction
There is no reaction.
Pumice does not react with hydrochloric acid.
solutions
The minerals of these rocks are similar.
Thio: 1 mole S2O32- = 2 equivalent So Eq. mass = 0.5 * (molar mass)
Solid Zinc reacting with Hydrochloric Acid is a single replacement Oxidation/Reduction reaction.
In a precipitation titration, the stoichiometric reaction is a reaction which produces in solution a slightly soluble salt that precipitates out.