Leyla

Chemistry

2 May, 07:51

What is the element presented, in this compound?

Test: A small amount of the sample is mixed with cupric oxide in a test tube. The test tube is heated and the issuing gas is passed through a saturated solution of baric hydroxide.

Observation: The solution turns cloudy.

Test: A small amount of sample is added to sodium metal in a fusion tube and heated. The test tube is then plunged in to a distilled water bath. The fusion tube breaks. The content of the fusion tube is then dissolved in the distilled water, using a glass rod. The solution thus obtained is boiled and filtered. Freshly prepared solution of sodium nitroprusside is added to about 1 milliliter of the filtered solution.

Observation: The color of the solution turns violet.

Test: A compound is fused with sodium peroxide and extracted with water. This solution is heated with nitric acid and ammonium molybdate solution.

Observation: A yellow colored precipitate results.