WebFlame Test. Slightly open the air hole of the Bunsen burner. Heat a piece of nichrome wire in a Bunsen flame until the flame is no longer coloured. Dip the loop at the end of the … WebA flame test is carried out by cleaning a platinum or nichrome wire by placing it in concentrated hydrochloric acid. We use platinum or nichrome because they have a high melting point (so it won’t melt in the flame) …
Flame Tests (8.3.1) AQA GCSE Chemistry Revision Notes 2024
WebDec 27, 2024 · 1. To acidify the sample, add a few drops of dilute hydrochloric acid (HCl) to the sample. 2. Then, add a few drops of dilute barium chloride (BaCl 2) solution to the sample. 3. If sulfate ions are present in the solution, a white precipitate of barium sulfate (BaSO 4) will form. The reaction is: Ba²⁺ (aq) + SO 4 ²⁻ (aq) → BaSO 4 (s ... WebFlame tests and chemical tests are used to detect and identify ions in samples. Instrumental methods of analysis are faster, and more accurate and more sensitive than simple chemical... dubuske
GCSE Science Revision Chemistry "Flame Tests" (Triple)
Web6 rows · Flame tests and chemical tests are used to detect and identify ions in samples. Instrumental ... WebTo carry out a flame test: dip a clean wire loop into a sample of the compound being tested; put the loop into the edge of the blue flame from a Bunsen burner; observe and record … WebGCSE. AQA Chemistry. 4.8 Chemical analysis. 4.8.3 Identification of ions by chemical and spectroscopic means. 4.8.3.5 Sulfates. Sulfate ions in solution produce a white precipitate with barium chloride solution in the presence of dilute hydrochloric acid. 4.8.3.1 Flame tests. Flame tests can be used to identify some metal ions (cations). razzy\\u0027s menu