Assess the effect of concentration of sodium thiosulphate in the acid/sodium thiosulphate reaction

The first 200 words of this essay...

Chemistry Coursework

Plan

In this project, I am trying to assess the effect of concentration of sodium thiosulphate in the acid/sodium thiosulphate reaction as follows: -

Sodium thiosulphate + hydrochloric acid ==>Sodium Chloride + Sulphur + Sulphur dioxide + water

Or

Na2S2O3+2HCl ==>2NaCl + S + SO2 + H20

Some of these chemicals are hazardous unless handled correctly - here is a safety table of the substances I am using:-

Chemical

Hazard

Procedure

Sodium Thiosulphate - Na2S2O3

* Harmful if ingested in quantity

* In reactions with acid - Sulphure dioxide is produced.

* Ventilate room

Hydrochloric Acid - Hcl

* Corrosive

* Irritant

* May cause burns

* Vapour is very irritating to the respiratory system

* Wear protective clothing

* Ventilate room

Sulphur Dioxide - SO2

* Irritant to respiratory system

* Noctious gas

* Ventilate room

Sodium Chloride - NaCl

* Irritant

* Harmful if ingested in quantity

* If contact with skin occurs, wash thorugly.

Sulphur - S

NO HAZARD

N/A

Water - H20