ACIDS‚ BASES AND SALTS 1. What are indicators? What are the different types of indicators? An indicator is a dye which changes colour when put into an acid or a base. The different kinds of indicators are- Natural indicators- Litmus is a natural indicator‚ litmus solution is a purple dye which is extracted from a plant called lichen. Litmus turns red in acidic solutions and blue in basic solutions. Other
Premium PH Acid Hydrochloric acid
In the face of reports about catastrophic oil spills and the rapid increase of global warming‚ concerns for the environment tend to overwhelm individuals and make them feel helpless in efforts to promote pro-planet action. But everyone can boost awareness about the environment by implementing some basic eco-friendly habits. Make Simple Changes to Go Green Whether it’s a one-day per week contribution or a lifestyle change‚ here are 10 suggestions for simple things to do to prioritize and protect
Premium Fluorescent lamp Incandescent light bulb Recycling
Title: Physical and Chemical Properties Purpose: To investigate the physical and chemical properties of pure substances as distinguishing characteristics. Procedure: 1. Set up a well plate with 24 pieces and fill two with either Dilute HCl or Dilute NaOH. 2. Set up four test tubes with any single substance in each one. 3. Observe and record original color and odor of substance. 4. Light flame with matches. -Hold test tube with substance in it over flame with clamps -Observe and record
Premium Chemistry Sodium hydroxide Base
Materials * Empty soda bottle * 5 tablespoons of vinegar * 1/2 tablespoon of baking soda * Tea light candle Procedure: Ask an adult for permission before lighting the candle! 1. Light the candle. 2. Pour the vinegar into the bottle and add the baking soda. (You may want to use a funnel.) The mixture should fizz. 3. Hold the bottle sideways over the lighted candle‚ making sure no liquid escapes. What happens to the flame? Explanation: The baking soda and vinegar react to make
Premium Hot air balloon Vacuum Water
Results: For the solutions acid and bases lab the results my group received are as followed. Procedure 5.1 were we had to measure the ph of the following substances Vinegar 4 Apple Juice 4 Black coffee 5 Baking Soda + Sprite 8 0.01mM HCl 4 0.1mM HCl 3 Distilled water 4.5 Tap Water 5 Procedure 5.2 -Test the ability of buffers Before Buffer After Buffer Water 4 Water 4 0.1M phosphate buffer 6.5 0.1M Phosphate buffer 6.9 0.1M NaCl 4 0.1M NaCl 4.8 Procedure 5
Premium Acid Base Sodium hydroxide
substances that I found to be bases are window cleaner‚ hand soap‚ baking soda‚ baking powder‚ bleach‚ Lysol‚ and antacid. These substances were found to be bases because after testing them by dipping pH paper into a well filled with about three drops of the substance‚ the color of the paper turned to a color correlating with the color of an eight or higher on the pH scale. 3. The substances that I found to be acids are vinegar‚ mouthwash‚ gastric juice‚ black coffee‚ and lemon juice. These substances
Premium PH Blood
Department of Chemistry Properties of Gases Date Submitted: June 16‚ 2013 Date Performed: June 13‚ 2010 Lab Section: Chem-181 DL Course Instructor: Purpose In this lab‚ I will be investigating some physical and chemical properties of gases and
Premium Oxygen Carbon dioxide Gas
spot left by one substance on a specific surface like fabric. They are used in conjunction with the regular laundry soap or detergent in aiding the process of complete stain removal. The most common type of stain removers in the market are vinegar‚ baking soda‚ and hydrogen peroxide. However there are certain herbs or plants that may also help in the removal of clothing stains. One of which is the Cymbopogon or simply known as lemongrass. This study aims to answer the following questions: *
Premium Textile Laundry Clothing
Laboratory Report Title: Observation of Chemical Change Course: General College Chemistry Purpose This experiment examines the reactions of common chemical s contained in consumer products. The purpose is to observe the macroscopic changes that these chemicals undergo. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Procedure We do not have the ability to see with a naked eye individual atoms and molecules
Premium Chemistry Blue Chemical reaction
Unit 2 Home Labs Goals: • Read Safety • Perform Changes: Physical or Chemical Lab • Perform Special Physical Properties of Matter Lab • Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions‚ and
Premium Chemical reaction Chemistry Chemical substance