____________________________and ___________________________ Date ____________________________ Objectives: (1) To determine the amount of NaHCO3 in Alka Seltzer tablets by observing the amount of CO2 produced from the acid-base reaction of HCO3- with acetic acid (in vinegar). (2) To study the concept of limiting reactant. Background: Alka Seltzer is an effervescent tablet that contains aspirin (acetylsalicylic acid)‚ citric acid‚ and sodium bicarbonate (NaHCO3). As soon as the tablet dissolves in water‚ the
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The hardness of bone is due to calcium deposits in the matrix while the flexibility comes from the organic material of the matrix. We can illustrate these facts by treating two bone samples by two different methods: 1. Soaking a bone in vinegar (dilute acetic acid) removes calcium and other minerals from the bone. Samples treated in this manner remain flexible but lose their hardness. 2. Baking a bone chars the organic material in the bone matrix leaving the bone very brittle. In this experiment
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The purpose of this experiment is to find out that a homemade flea shampoo for dogs is as effective as those bought in a store. We first chose a recipe from the internet and bought the materials needed. The main ingredients used were apple cider vinegar and dye-free liquid dish detergent. We mixed all the materials together and then tested our product. Table of Contents Chapter 1: Introduction a. Background of the Study--------------------------------------------------------page 1 b. Statement
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Also known as: ethanoic acid‚ Glacial acetic acid‚ Ethylic acid‚ Vinegar acid‚ Acetic acid‚ glacial‚ Methanecarboxylic acid‚ Acetasol‚ Essigsaeure Molecular Formula: C2H4O2 Molecular Weight: 60.05196 Acetic acid is a weak acid which is probably most famous for being the primary acid in vinegar. In fact‚ acetic acid has a wide range of uses beyond sprinkling on salads‚ and it is produced in large volumes all over the world. People have been working with this acid in a number of contexts for
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cheese‚ and fatty dressings to the lettuce and a couple other vegetables. The result is enough fat to fulfil your fat content for the entire day. If you’re going to indulge in a salad‚ avoid the croutons altogether and opt for apple cider or balsamic vinegar or oil and vinaigrette. Between the appetizer‚ rolls‚ salad‚ and first round of drinks most people have already consumed more than they ever would by cooking a meal at home. The problem is that all of these items are pushed by the waiter or their
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Testing the Combination of Pansit pansitan (Peperomia pellucida) and Vinegar as Potential Wet Cell Pansit-pansitan is an erect‚ branched‚ annual herb‚ shallow rooted‚ reaching up to 40 centimeters high‚ with very succulent stems. Stems are round‚ often about 5 millimeters thick. Leaves are alternate‚ heart-shaped and turgid‚ as transparent and smooth as candle wax. Spikes are green‚ erect‚ very slender‚ 1 to 6 centimeters long. Tiny dot-like flowers scattered along solitary and leaf-opposed stalk
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the plant Camellis Sinensis as an ink. Nowadays‚ the environment is being destructed and one the major causes of destruction is water pollution. These are the objectives of the group’s study: 1. to use the extract as component of ink 2. to use vinegar to strengthen the colour of the ink 3. can cornstarch contribute to achieving the right consistency of the ink C. Significance of the Study This investigatory project will benefit us by producing an alternative to other inks‚ specially the materials
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EXPERIMENT NO 1. MATERIALS Sofdriks (coke) Dropper Vinegar Milk (yakult) Litmus paper Beer Ampalaya fruit Distilled water Calamasi PROCEDURE: 1. Prepare the materials that needed in experiment. 2. Using dropper‚ get a little amount of coke‚ vinegar‚ milk‚ beer‚ and distilled water then drop to red and blue litmus paper. Record the result. 3. Squeeze the
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the odour. Hence‚ this current study aims to investigate the effectiveness of the sunlight in removing the odour and mildew and finding alternatives in replacement of sunlight by using salt‚ vinegar and baking soda. In the experimental procedures‚ dynamo was added to five sweaty shirts. Salt‚ vinegar and baking soda were then added to the three shirts respectively during washing. Repeatedly‚ the experiment was carried out in sunny‚ cloudy and windy conditions to obtain a better accuracy
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water and vinegar to produce the shiny‚ streak-free result that is everyone’s goal when it comes to cleaning windows. Here’s what you’ll need: Materials: 1 16-oz. bottle‚ such as the Ultimate Glass Spray Bottle ($8.43 from Olive Cart). 1 liquid measuring cup (at least 8 ounces). Small sieve; a 6-inch Stainless Steel Mesh Sieve is $19.95 from Sur La Table. Small whisk; a Profi Plus Mini Ball Whisk is $20 from Williams-Sonoma. 1/2 lemon‚ juiced. 1 tablespoon cornstarch. 1/2 cup white vinegar. 1/2 cup
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