Data Table 1: Testing Individual Ions Test/Reagent 1. SO4 2. HCI wwww 3. Heat + K₂CrO4 4. NaOH 5. NH3 + DMG Agt No reaction Precipitate formed Precipitate dissolved/clear/ Little precipitate remained No Clear Pb+2 No change Precipitate formed White precipitate No reaction formed Precipitate dissolved/clear precipitate/clear yellow Slight precipitate Slight precipitate brown color milky color Individual lons Tested No reaction Ni+2 No change Slight precipitate No reaction Dull milky yellow No reaction No reaction Precipitate formed but not green Red/no precipitate Ba+2 White precipitate No reaction formed No reaction No reaction No reaction No sinking/light blue green color formed Some precipitate Precipitate Dissolved/blue floating No Change Fe+3 Color changed yellow No reaction Precipitate precipitate/slight formed brow/red cloudy color No reaction Clear No change

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".