solid sodium hydroxide in water. NaOH(s) ---> Na+(aq) + OH-(aq) + heat Reaction 2: The reaction of solid sodium hydroxide with dilute hydrochloric acid. NaOH(s) + H+(aq) + Cl-(aq) ---> Na+(aq) + Cl-(aq) + H2O Reaction 3: The reaction of sodium hydroxide solution with dilute hydrochloric acid solution. Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) ---> Na+(aq) + Cl-(aq) + H2O Objectives: To measure and compare the amount of heat involved in three
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from the reaction of hydrochloric acid and aluminum fills a plastic bottle until it ruptures. Warning! The Works bomb is illegal to make! Don’t do it! The information below is purely for educational purposes (such as research papers) and may leave leaves out crucial steps Here’s how someone would make the Works bomb if it were legal: 1.) Go to a grocery store or big box store and pick up toilet cleaner containing hydrogen chloride (a.k.a. hydrochloric or muriatic acid). One brand‚ the Works
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Tyler Aim: To produce and test for hydrogen gas. Materials: * rubber stopper * dilute hydrochloric acid (HCI) * zinc pieces (Zn) * test-tube rack * matches * dilute sulphuric acid (H2SO4) * 2 cm strips of magnesium ribbon (Mg) * Iron pieces (Fe) * Test-tube Method 1. Test the different metals with the acids by separately combining each piece of metal with 5mL of acid in a test-tube. 2. Cover the opening of the test-tube with the rubber stopper to trap any
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Acid-Base Titration Curves INSTRUCTOR RESOURCES The CCLI Initiative Learning Objectives to understand the titration curves for the following solutions • a weak acid: acetic acid‚ CH3COOH. • • • • • a strong acid: hydrochloric acid‚ HCl. an acidic commercial cleanser. a basic commercial cleanser. to use the titration curves to calculate the percent of the active ingredients in the commercial cleansers. to determine the Ka of a weak acid. Procedure Overview • • • • after calibration of the pH
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Wool * Stop clock * Meter rule * Tweezers * 2 Rubber bum Method: * The equipment was collected. * The glass tube was placed between the two clamps ensuring that it was leveled. * A small amount of hydrochloric acid was poured into the beaker. * The cotton wool was placed at one end of the glass tube using tweezers. Seal it off with a rubber bum. * Repeating steps 3-5 simultaneously. * The stop clock was started‚ keeping record of time taken
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examination‚ fasten all your work securely together. 2 This question paper consists of 10 printed pages. SAJC 2010 P3 – Answer any four questions. 1 (a) Hydrolysis of a lipid (containing multiple ester linkages) produced the following fatty acids. Structure I CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOH Structure II CH3CH2CH=CHCH2CH=CHCH2CH=CH(CH2)7COOH (i) In an experiment‚ hot acidified potassium manganate(VII) was used to oxidise Structure I. Write the structural formulae of all organic
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Forces Sucrose Water Hydrogen Bonding & London Dispersion Forces Class N (Neutral) Compounds Benzyl Alcohol Sulfuric Acid Hydrogen Bonding & London Dispersion Forces Benzaldehyde Sulfuric Acid Ion – Induced Dipole & London Dispersion Forces Class B (Basic) Compounds Aniline Hydrochloric Acid Ion – Dipole & London Dispersion Forces Class A (Acidic) Compounds Benzoic Acid NaOH Ion – Induced Dipole & London Dispersion Forces NaHCO3 Ion – Induced Dipole & London Dispersion Forces Phenol
Free Hydrogen Oxygen Ethanol
the Bunsen Burner 4. Allowed the reaction to proceed for a total of 15 seconds. 5. Placed the glowing splint into the test tube 6. Recorded the results Part 2: Magnesium strip and Hydrochloric acid 1. Poured 3mL of hydrochloric acid into a test tube 2. Placed the magnesium strip into the hydrochloric acid into the tube and immediately covered the tube with a rubber stopper. 3. Allowed the magnesium strip to dissolve completely. 4. Carefully inserted a burning splint into the test tube
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basic substances are often converted to water-soluble salts‚ which can then be separated from the water-insoluble components of a mixture. In this experiment‚ we separated the components of a simulated pharmaceutical preparation‚ making use of their acid-base properties. The Panacetin was weighed at 3.00grams. The filter paper weight was .218 grams. The sucrose weight was 1.389grams. We mixed 25 ml of NaHCO3 with filtrate (Panacetin and Dichloromethane) in a flask. The substance was a cloudy mixture
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Purpose To test the reactions of primary‚ secondary‚ and tertiary alcohols with acid and with an oxidizing agent. Materials chemical safety goggles lab apron protective gloves test-tube rack eyedropper dropper bottles containing butan-1-ol butan-2-ol 2-methylpropan-2-ol potassium permanganate solution‚ KMnO4 (aq) (0.01 mol/L) concentrated hydrochloric acid‚ HCl (aq) (12 mol/L) (for teacher use only) Procedure 1) Put on your safety goggles‚ apron‚ and protective gloves.
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