why does hydrochloric acid and sodium thiosulphate turn cloudy
Chemical Background. When sodium thiosulphate is mixed with dilute hydrochloric acid it makes a. cloudy liquid of sodium chloride, water, sulphur (this makes the liquid cloudy), and it gives of the gas sulphur dioxide. A precipitate of sulphur is made.oncentration of the acid got less. When we changed the concentration of the. sodium thiosulphate to 40cm3 to 10cm3 of water then add the same amount of. hydrochloric acid (5cm 3), the rate of reaction was slower.