Press "Enter" to skip to content

What happens when sodium thiosulfate reacts with hydrochloric acid?

The Reaction When sodium thiosulphate is added to a solution of hydrochloric acid, an insoluble precipitate of sulphur (S) is formed. This happens because of the precipitates of elemental sulphur that are being formed, which are insoluble and eventually cloud the water.

Why does sodium thiosulphate gives colloidal precipitate on reaction with HCl?

Answer. Answer: Sodium thiosulphate reacts with dilute acid to produce sulphur dioxide, sulphur and water. The sulphur formed however is insoluble and exist in the mixture as a white or pale yellow precipitate or a colloid that gives a milky appearance and makes the solution opaque.

When aqueous sodium thiosulfate and dilute hydrochloric acid are mixed a precipitate of insoluble sulfur is produced this makes the mixture difficult to see through?

When aqueous sodium thiosulfate and dilute hydrochloric acid are mixed, a precipitate of insoluble sulfur is produced. This makes the mixture difficult to see through. Na2S2O3(aq) + 2HCl(aq) → S(s) + 2NaCl(aq) + H2O(l) + SO2(g) The time taken for the cross to disappear from view is measured.

Which of the following pairs can be separated by h2s in Dil HCl?

Explanation: (i) Both Bi3+ and Sn4+ (belongs II group) are precipitated by H2S in presence of dil. HCl.১৬ মার্চ, ২০১৯

How long does it take for sodium thiosulfate to work?

within 2 weeks

Why is sodium thiosulfate soluble in water?

The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water….Sodium thiosulfate.

Names
Solubility in water 70.1 g/100 mL (20 °C) 231 g/100 mL (100 °C)
Solubility negligible in alcohol
Refractive index (nD) 1.489
Structure

Which of the following is secondary standard?

Solution : hydrated sodium thiosu,phate Na2S2O3⋅5H2O called ‘hypo’ is readily solube in water and solutions are used for iodinetitrations in volumetric analysis. …