16-3 Red Cabbage Juice pH Indicator Sources: Prof. George Ewing’s C100 Demonstration Notes; Prof. Carolyn Huffman’s Fall ’93 C100 lecture; B. Z. Shakhashiri‚ 1989‚ Chemical Demonstrations: A Handbook for Teachers of Chemistry‚ vol. 3‚ pp 162-166. Description and Concept: Red cabbage juice will change to a variety of colors when added to solutions of various pH. Red cabbage juice is a pH indicator. Materials: red cabbage* blender hot or boiling water filter paper (coffee filters
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The purpose of this lab was in order to find which combination of two electrodes would produce the greatest voltage‚ under the condition that lemon juice was the electrolyte within a chemical cell. To conduct the lab‚ two slits were created in a lemon‚ which worked as a chemical cell‚ and an assortment of different electrodes were inserted into the lemon. Afterward‚ two wires were attached to each of the electrodes‚ where a voltmeter then gave a reading that was recorded into data. As the experiment
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Hydrochloric acid (HCl) * Sodium hydroxide (NaOH) * White Vinegar * Lemon Juice * Baking soda (NaHCO3) * Hair conditioner * Shampoo * Hand soap * Cloudy Ammonia * Dish washing detergent Method: 1) Tear off leaves from the cabbage and tear them into smaller pieces. 2) Fill the larger beaker with about 150 milliliters of distilled water. Place the torn pieces of red cabbage into the beaker. 3) Place the beaker on tripod Turn the heat up to medium or
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Day 1: Cabbage soup‚ plus any fruit (except bananas). Drink unsweetened tea‚ plain coffee (no sugar or milk)‚ cranberry juice and water. Day 2: Cabbage soup‚ plus other vegetables (raw‚ boiled or steamed) and avoid dry beans‚ peas and corn. For dinner‚ eat a baked potato with a limited amount of butter. Day 3: Cabbage soup‚ plus other fruits and vegetables but no baked potato. Day 4: Cabbage soup‚ plus up to 8 bananas and fat-free milk. What you eat this day is supposed to lessen your desire for
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Red Cabbage Indicator Indicators are chemical compounds that can be added to a solution to determine whether it is acidicor alkaline. The indicator will change colour depending on whether an acid or an alkali is added. The colour in red cabbage (it is a pigment called an anthocyanin) makes a very good indicator. Acids and alkalis Acids have a sour taste‚ like vinegar (which contains ethanoic acid) and lemons (which contain citric acid). Alkalis are substances that react with acids and neutralise
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I. PROBLEM How to identify the acidity or alkalinity of solutions using cabbage? II. TITLE The Mercurial Cabbage III. RATIONALE We searched on the internet and came across this piece. It seemed like a cool experiment at a glance but as we read through we found it helpful. We decided to add this on our list of proposals. We were also curious and wanted to know the acidity and alkalinity of certain liquids since this is like an acidity or alkalinity indicator. This study can help many
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Asparagus Delight Juicing Recipes Juice Recipe: 4 asparagus spears‚ 3 carrots and 2 celery ribs. Simple Asparagus Juicing Recipes - 6 asparagus spears‚ 3 celery ribs‚ handful of cilantro Pepper Beets Juice Recipe: 1/2 beet with green root‚ 3 carrots‚ 1/2 red bell pepper Beeting it with Cilantro Juice Recipe: 1/2 beet with green root‚ 3 carrots‚ handful of cilantro Sweet Beets Juice recipe: 1/2 beet with green root‚ 1 sweet potato‚ 2 apples Broccoli Sunrise Juice Recipe: 1 broccoli spear‚ 4 carrots
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absorb and retain a lot of heat. Ouch! As heat is retained‚ the air inside the oven also heats. Next thing you know‚ you’re eating delicious‚ melt-in-your-mouth s’mores! Rising Water Secret Materials • • • • • • Candle and matches Pie pan or dish Juice bottle‚ jar or clear vase Water Food coloring Matches The candle flame heats the air in the vase‚ and this hot air expands. Some of the expanding air escapes out from under the vase — you might see some bubbles. When the flame goes out‚ the air in
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CHM1032L pre/post lab instructions Preparation is a key to success in this lab. For this reason‚ you are required to thoroughly read through the experiment information presented in the lab manual‚ and complete a pre-lab for each experiment you do. The prelab must be completed prior to the day of the experiment. Each Friday I will ask to see your completed prelab before I allow you to enter the lab. If you have not finished the pre-lab‚ I will not allow you to enter the lab and you will receive
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Lab report is one way we used during of after an experiment in a laboratory to subtly record and discuss the experiment. During a lab‚ we sometimes can observe only the physical part of the experiment‚ or may be some visible chemical changes. These changes indicate that the experiment we do is successful or not. However‚ in order to understand and achieve more from just simply doing the experiment‚ we write lab report to more profoundly understand the internal meanings of the experiment we do‚ and
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