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Why whie precipitate of BiOCl disappears when HCl is added?
When HCl is added to a white precipitate of BiOCl, it forms a soluble complex ion, [BiCl4]–, due to the formation of BiCl4- species. This makes the BiOCl precipitate dissolve, resulting in the disappearance of the white precipitate.
What precipitate is formed with MgSO4 and AgNO3?
A white precipitate of silver sulfate (Ag2SO4) is formed when magnesium sulfate (MgSO4) reacts with silver nitrate (AgNO3) due to the insolubility of silver sulfate in water.
What is observed when the NaSO3 solution is added to the CuCl2 solution?
When NaSO3 is added to CuCl2 solution, a white precipitate of CuSO3 forms. Copper(II) sulfite is insoluble in water, causing it to precipitate out of the solution.
Which aqueous ion causes a white precipitate to form when acidified aqueous silver nitrate is added to it?
Chloride ions (Cl-) cause a white precipitate (silver chloride) to form when acidified aqueous silver nitrate is added to it.
Which gas is evolved when acid is added to lime water?
When an acid is added to lime water (calcium hydroxide solution), carbon dioxide gas is evolved. This reaction forms calcium carbonate, which is insoluble in water and appears as a white precipitate.
Why whie precipitate of BiOCl disappears when HCl is added?
When HCl is added to a white precipitate of BiOCl, it forms a soluble complex ion, [BiCl4]–, due to the formation of BiCl4- species. This makes the BiOCl precipitate dissolve, resulting in the disappearance of the white precipitate.
What precipitate is formed with MgSO4 and AgNO3?
A white precipitate of silver sulfate (Ag2SO4) is formed when magnesium sulfate (MgSO4) reacts with silver nitrate (AgNO3) due to the insolubility of silver sulfate in water.
What is observed when the NaSO3 solution is added to the CuCl2 solution?
When NaSO3 is added to CuCl2 solution, a white precipitate of CuSO3 forms. Copper(II) sulfite is insoluble in water, causing it to precipitate out of the solution.
What colour precipitate forms for silver nitrate and potassium carbonate?
A white precipitate forms when silver nitrate and potassium carbonate react, due to the formation of insoluble silver carbonate.
What is the test for barium ions?
The test for barium ions involves adding a solution of a sulfate compound (e.g. sodium sulfate) to a solution containing the barium ions. A white precipitate of barium sulfate forms if barium ions are present.
What is colour of silver nitrate precipitate?
white :] To be sure, search this on Wikipedia, and look to the right at appearance.
What is a example of formation of a precipitate?
an example of a precipitate is: silver nitrate + sodium chloride = silver chloride and sodium nitrate the precipitate is the silver chloride it forms a white powder
Which aqueous ion causes a white precipitate to form when acidified aqueous silver nitrate is added to it?
Chloride ions (Cl-) cause a white precipitate (silver chloride) to form when acidified aqueous silver nitrate is added to it.
Which gas is evolved when acid is added to lime water?
When an acid is added to lime water (calcium hydroxide solution), carbon dioxide gas is evolved. This reaction forms calcium carbonate, which is insoluble in water and appears as a white precipitate.
What is the colour of silver thiocyanate?
The color of silver thiocyanate is white or pale yellow.
Why do you add hydrochloric acid to test for sulphate?
Hydrochloric acid is added to a solution being tested for sulphate ions to precipitate the sulphate as barium sulphate. This is a confirmatory test for the presence of sulphate ions in the solution because barium sulphate is insoluble and forms a white precipitate.
When solutions NACl and AgNO 3 are mixed what precipitate forms?
NaCl(aq) + AgNO3(aq) = AgCl(s) + NaNO3(aq) - so the precipitate is white silver chloride.
