Showing 10 of 10 Chemistry Experiments
Acid-Base Titration: Standardizing HCl with 0.1M NaOH
Determine the strength and molarity of a given Hydrochloric Acid (HCl) solution by titrating against a standard 0.1 M Sodium Hydroxide (NaOH) solution using phenolphthalein indicator.
Redox Titration: Potassium Permanganate vs Mohr's Salt
Determine the molarity and strength of Potassium Permanganate (KMnO4) solution by titrating against a standard 0.05 M solution of Mohr's Salt [FeSO4·(NH4)2SO4·6H2O] in acidic medium.
Systematic Qualitative Salt Analysis: Cation & Anion Detection
Systematically analyze an unknown inorganic salt to identify one acid radical (anion) and one basic radical (cation) through preliminary and confirmatory wet tests.
Preparation of Standard 0.1 M Oxalic Acid Solution
Prepare 250 mL of standard 0.1 M primary standard solution of hydrated Oxalic Acid [(COOH)2·2H2O] using an analytical balance and volumetric flask.
pH Determination of Common Solutions using Universal Indicator
Determine the pH values of various everyday and laboratory solutions (lemon juice, vinegar, saliva, baking soda, NaOH, HCl) using pH paper strips and a calibrated pH meter.
Chemical Reaction Kinetics: Sodium Thiosulfate and HCl
Investigate the effect of concentration on the rate of reaction between Sodium Thiosulfate (Na2S2O3) and Hydrochloric Acid (HCl) by timing the opacity created by colloidal sulfur.
Paper Chromatography of Plant Pigments in Spinach Leaves
Separate and identify photosynthetic leaf pigments (Chlorophyll a, Chlorophyll b, Xanthophyll, and Carotene) from fresh spinach extract using ascending paper chromatography.
Preparation of Colloidal Sol & Tyndall Effect Demonstration
Prepare a lyophilic starch sol and a lyophobic Ferric Hydroxide [Fe(OH)3] sol, and demonstrate light scattering (Tyndall Effect) using a red laser beam.
Systematic Tests for Organic Functional Groups
Perform characteristic chemical diagnostic tests to detect the presence of Carbonyl (Aldehyde/Ketone), Carboxylic Acid, and Alcoholic functional groups in organic compounds.
Enthalpy of Neutralization Calorimetry: Strong Acid & Strong Base
Determine the enthalpy of neutralization of a strong acid (1.0 M HCl) with a strong base (1.0 M NaOH) using a polystyrene coffee cup calorimeter.
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