Kids science: Acids and Bases


Posted On Feb 17 2010 by

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This causes the ‘fizzing’ that you see, similar to that in carbonated water. Alka-Seltzer is a medication that works as a pain reliever and an antacid. (Antacids help neutralize stomach acidity, which can cause heartburn.) The pain reliever used is aspirin and the antacid used is baking soda, or sodium bicarbonate. The tablets also include other ingredients, such as citric acid (a weak acid that adds flavor-as well as provides important hydrogen ions, which will come into play as you shall soon see). If you combine vinegar and baking soda for a chemical volcano or milk with baking powder in a recipe, you experience a double displacement, or metathesis reaction (plus some others.) The ingredients recombine to produce carbon dioxide gas and water.

The 12 chemistry tricks in this kit will amaze your friends plus teach about the science of pH, acids and bases, density, chromatography, and polymers. 0 mL of 0. Describe the chemical reactions of baking soda and baking powder when used as a leavening agent. • Examples of strong acids in ground water are nitric and sulfuric acid from acid rain or industrial discharge, hydrochloric acid used to open up a well (dissolve calcite) • Strong acids have a large Ka, indicating that there are more products than reactants, Solutions to the Titrations Practice Worksheet For questions 1 and 2, the units for your final answer should be “M”, or “molar”, because you’re trying to find the molarity of the acid or base solution.

Hands-on Activity: Reaction Exposed: The Big Chill!

Neutralization Reactions In a neutralization reaction (or acid-base reaction) a proton is transferred from the Brønsted–Lowry acid to the Brønsted–Lowry base. NaCl not ClNa Acid + Base Salt + Water Identify the salt produced and balance the equation if required. An acid-base reaction is one in which a hydrogen ion, H +, is transferred from one chemical species to another. Identify each chemical as either an “acid” or a “base” in the following reactions, and identify “conjugate” relationships. An acid-base reaction is a chemical reaction that occurs between an acid and a base, which can be used to determine pH.

But what is an electrolyte? An electrolyte is a substance that, when dissolved in water, dissociates, or breaks down into a cation (positive ion) and an anion (negative ion).

Although you might be able to drink the products of Alka Seltzer and water, you should not consume the products of your experiment with Alka Seltzer and hydrochloric acid. When Alka Seltzer meets hydrochloric acid, a double displacement reaction occurs to create table salt and carbonic acid. And because the carbonic acid is unstable, it will break down into water and carbon dioxide, giving off a “fizzy” gas.

Each H + will react with an OH – on both sides Finally, many organic reactions are catalyzed by acids and/or bases, and although such transformations may seem complex, our understanding of how they occur often begins with the functioning of the catalyst. It also contains some questions on writing formula equations for acid-base neutralization reactions.

When working with hydrochloric acid, use safety goggles and acid-resistant aprons and gloves. Eye wash stations and showers should be readily available for use in case of accidents.

Baking soda is soft enough to use with water to polish and clean stainless steel and iron. Liquids also dissolve the sugar and salt, making possible the leavening action of baking powder, soda and acid, or growth of yeast. Then, reduce your daily dosage to 1/4 teaspoon of baking soda and 1/3 teaspoon of salt.

Hydrochloric Acid and Alka Seltzer

The reaction of sodium bicarbonate and water is very similar to the phenomena seen when Alka-Seltzer tablets are placed in a glass of water. Regarding the Solvay process, sodium bicarbonate is an intermediate in the reaction of sodium chloride, ammonia, and carbon dioxide. The product however shows low purity (75%). Sodium bicarbonate is one of the main components of the common “black snake” firework. The effect is caused by the thermal decomposition, which produces carbon dioxide gas to produce a long snake-like ash as a combustion product of the other main component, sucrose.

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This is the most complex of the four types of reactions. When the conjugate acid and the conjugate base are of unequal strengths, the solution can be either acidic or basic, depending on the relative strengths of the two conjugates. Occasionally the weak acid and the weak base will have the same strength, so their respective conjugate base and acid will have the same strength, and the solution will be neutral.

12. Give the word equation for the neutralization reaction of an acid and a base.

When acid reflux occurs, food or fluid may be tasted in the back of the mouth. When refluxed stomach acid touches the lining of the esophagus it may cause a burning sensation in the chest or throat called heartburn or acid indigestion.

To predict whether a particular combination will be acidic, basic or neutral, tabulated K values of the conjugates must be compared. In the first reaction (hydrochloric acid with sodium hydroxide) the resulting solution was clear. When this solution was heated a small amount of white powder was noted. This powder is sodium chloride.

Last Updated on: September 26th, 2019 at 7:31 pm, by


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