ACIDS 1. Acids are chemicals which will turn litmus paper red. Litmus is a colored Chemical which can change from red to blue and back again. Which colour it is Depends upon the concentration of Hydrogen ions. If the concentration of Hydrogen ion is higher than it is in pure water then the litmus will turn red. If it is lower than in pure water the litmus will turn blue. 2. An acid is a substance that turns blue litmus paper red acids can‚ be identified due to specific
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recognize as a chemical in their household is Lemon Juice. This is a liquid mixture of water and citric acid. Its color is mildly foggy and a pale yellow. Lemon juice is a chemical acid and when mixed with a base like baking soda creates a reaction. Reactions that occur Mixing lemon juice with baking soda gives you a chemical reaction. The lemon juice contains citric acid. The citric acid from the lemon juice will donate a hydrogen ion (H+) to the bicarbonate or baking soda (NaHCO3). When the
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Transparent B. Opaque C. Translucent D. Water proof 4. Bronze is made up of A . Iron and Tin B. Lead and Iron C. Carbon and Zinc D. Copper and Tin 5. What acid is found in Vinegar? A. Lactic acid B. Hydrochloric acid C. Ethanoic acid D. Propanoic acid 6. Igneous rocks are also called as A. Fire Rock B. Ice rock C. Coal D. Lime stone 7. The process by which rocks break up to form fragments is called A. Eruption B. Weathering C. Surface
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Citric acid reacts rapidly with iron‚ but is not itself the rusting of iron. The water in the lemon juice helps iron rust‚ but in the presence of air. The same happens when you open bottle of Coca-Cola‚ including citric acid‚ phosphoric acid‚ carbonic acid and other things in the fall for the taste. Citric acid has an advantage over some other acids‚ because it is less corrosive‚ not as dangerous to the environment‚ while remaining efficient‚ cheap (but not as cheap as the old battery acid). The
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is a dry chemical ingredient used in the making of a cake. It consists of sodium bicarbonate (an alkali)‚ acid salt (such as tartaric acid) and starch that when exposed to water‚ react together to form carbon dioxide gas causing it to expand‚ thereby producing bubbles and allowing the cake dough to rise. Typically today‚ modern baking powders are double acting (meaning they contain two acid salts). One reacts at room temperature‚ causing a rise as soon as the batter is prepared while the other one
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An acid-base titration is carried out by adding an acidic titrant to a basic solution. At which point should the titration be stopped and the volume of titrant used be recorded? Answer : when the solution reaches the endpoint Question = Buffers are substances‚ or mixtures of substances‚ that (help maintain a relatively constant pH when small amounts of acids or bases are added) Question= Which of the following statements best describes what determines whether an acid is a strong acid
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of Hydrochloric Acid (HCl) to neutralize the antacid would be most effective. Based on the results‚ Life Brand Milk of Magnesia was the most effective out of the three antacids because it took 120 drops of hydrochloric acid (HCl) to neutralize the antacid. The active ingredient in Life Brand Milk of Magnesia is magnesium hydroxide (“Nonprescription Medicines and Products - Antacids and Acid Reducers”). Magnesium hydroxide is a strong base with a pH value of 12 (“Strong and Weak Acids and Bases and
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Bicarbonate + Hydrochloric Acid 2. Hydrochloric Acid + Bromothymol blue 3. Ammonia + 1 drop Bromothymol blue 4. Hydrochloric acid + blue dye 5. Blue dye + Sodium Hypochlorite. Observe & add 1 drop of hydrochloric acid. 6. Potassium iodide + Lead Nitrate. A precipitate should form. 7. Sodium hydroxide + phenolphthalein. a. Phenolphthalein is an acid-base indicator. 8. Hydrochloric acid + phenolphthalein. a. What color would be expected when combining phenolphthalein with an acid or with a base?
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| |What is pH Balance? | |What is Acid and Alkaline water? | |What Are Experts That Drink it Saying?
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Determining the Molarity of Acetic Acid in Vinegar Abstract This experiment was done to determine the molarity of acetic acid in vinegar. The acetic acid in vinegar was titrated with a strong base sodium hydroxide to determine the equivalence point of this chemical reaction. The indicator phenolphthalein was used because the moment it changes color is on the basic side of the pH scale. To insure the experiment was done with the most accuracy‚ the two conductors of this experiment took three
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