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Acids and bases quizlet
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Acids and bases are not just in use in a laboratory, they come into play in the every-day, they are important to know, with respect to consumer and food products. PH scale, the potential for hydrogen ion concentration, is important because it pertains to the spectrum of acids and bases. Acids are an H+ donor and bases are a H+ acceptor. We can further identify acids by its sour taste, it turns litmus paper red, and it dissolves metals such as zinc or iron. Bases taste bitter, they turn litmus paper blue, and it has a slippery feeling. The pH scale ranges from one to fourteen, one through six are acids and eight through fourteen are the bases, with seven as a neutral. The acids are considered to have a low pH. whereas the bases or the alkaline
Concerning food products, the most common place acids, lemon juice, and bases, baking soda; can be found in almost every household (Andrews). For example, citrus fruits and vinegar are typically acidic, but when consumes they form alkaline (Andrews). Now food that has high protein have high sulfur amino acids, turning into sulfuric acids, such as dairy, meat, grains, and processed foods (Andrews). And for plant foods, such as fruits and vegetables, are alkaline forming (Andrews). Along with fats, there are nuts, oils, and seeds which are neutral on the scale (Andrews). When you consider acids and bases in food, look at the ph and how it will affect your
So, to break up the dirt and remove it or to neutralize it, is for the cleaning products to have a basic ph (Dimaano). A common household product with a high alkaline or basic level is bleach, its chemical name is sodium hypochlorite, NaClO. It is corrosive, with the many different derivatives of the salt, which is required to whiten and remove the stain. This compound is either colorless or slightly yellow liquid, it is usually mixed with water (PubChem). It is an irritant on the skin and to eyes (PubChem). Now looking at Clorox bleach in my house, the active ingredient is Sodium Hypochlorite, which is a derivative of salt, meaning that is breaks down into oxidized salt and biodegradables. It also contains sodium chlorate, sodium hydroxide, sodium carbonate, all of which are high on the basic levels. Another cleaning product that is used a lot in my house, is dishwasher pods, specifically Cascade Platinum Action Pacs. The powder ingredients contain many polyatomic chemicals whereas the liquid ingredients contain more dyes to obtain the colors seen in the pacs. The first powder ingredient listed is sodium carbonate, methyl glycine diacetic acid, sodium sulfate, sodium percarbonate. Many of these contain sodium, which is generally seen in more basic compounds, such as dish soap or soap in general. Sodium has corrosive qualities, but in small quantities and mixed with other elements, it is used to
The purpose of the Unknown White Compound Lab was to identify the unknown compound by performing several experiments. Conducting a solubility test, flame test, pH paper test, ion test, pH probe test, conductivity probe test, and synthesizing the compound will accurately identified the unknown compound. In order to narrow down the possible compounds, the solubility test was used to determine that the compound was soluble in water. Next, the flame test was used to compare the unknown compound to other known compounds such as potassium chloride, sodium chloride, and calcium carbonate. The flame test concluded that the cation in the unknown compound was potassium. Following, pH paper was used to determine the compound to be neutral and slightly
The purpose of this experiment was to examine how the stoichiometry, “the quantitative relationships between substances involved in a chemical reaction”, can be applied to determine the quantity of sodium hypochlorite found in a bleach product. This experiment allowed it to determine how much oxidizing agent is in a cleaner by using a redox reaction, which is a reaction involving the transfer of electrons from the compound being oxidized to the compound being reduced. To determine the amount of oxidizing agent, it is necessary to accurately measure out known amounts of redox reactants, know the stoichiometry
Most substances fall on a scale ranging from the most acidic to the the most basic with neutral substances falling somewhere in the middle. Scientists call this the pH scale. pH levels are measured in numbers,0 to 14. The closer a substance is to zero the more acidic it would be. The closer to 14 the more basic a substance would be.Now what defines an acid and a base, one might ask? There are three ways of defining acids, each singling out a specific property. The first theory is the Arrhenius Theory with states, that an acid is a substance that produces the ion H+ when in a water solution, while a base is a substance which produces the ion OH- when in a water solution. Examples of an Arrhenius acid are HCl and HNO3. Examples of an Arrhenius base are NaOH and AlOH3.
The next week was dedicated to the titration of household supplies. For this, we used two sodas, Cheerwine, and Diet Coke, as well as dish soap. Dish soap, along with many other household cleaning agents, has buffering properties. A buffer acts as a pH stabilizer. It is a combination of a weak acid and its conjugate base, or a weak base combined with its conjugate acid. If a strong acid ion is added, the buffer simply replaces it with a weak acid ion, therefore causing little change in the pH of the solution. Household cleaning products usually have some form of a buffer, because otherwise, they would burn skin to touch. As expected, the two sodas were originally acidic, while the soap was basic.
Base being Baking Soda, or Sodium Bicarbonate, and the acid being Vinegar, or Acetic Acid for a control. I measured 10 ml. of Vinegar, dumped that into a two inch high glass jar, and wrote down the pH level. Then I measured o...
Every chemical element or compound have specific properties that make them different than the other. However, these properties help us to understand every element or compound in which they can be used and how we can deal with them. These properties can be chemical properties which are defined as "that property must lead to a change in the substances ' chemical structure", such as heat of combustion and flammability ("Physical and Chemical…"). Also, these properties can be physical properties which are defined as the properties "that can be measured or observed without changing the chemical nature of the substance", such as mass, volume, boiling and freezing points ("Physical and Chemical…"). These two properties are related to each other. For
Disinfection is applied in water as well as wastewater treatment as a finishing step so as to destroy pathogens but the cause of concern regarding the disinfection process is the formation of disinfection byproducts (DBPs). Natural organic matter (NOM) in water has been considered as the predominant DBP precursors. Disinfectants are powerful oxidants that oxidize the organic matter present in water forming DBPs. Chlorine, ozone, chlorine dioxide, and chloramines are the most common disinfectants used nowadays and each produces its own suite of chemical DBPs in finished drinking water (Richardson, 2003). DBPs so formed pose a threat to human health because of their potential to cause cancer and reproductive/developmental effects. Most developed nations have regulated concentration of DBPs so as to minimize exposure to potentially harmful DBPs while maintaining adequate disinfection and control of targeted
strong acid or base does not necessarily yield a drastic jump in pH. The acid
There are four conditions that are associated with acid-base imbalance. Disorders that result from changes in the partial pressure of carbon dioxide (PCO2) in systemic arterial blood are respiratory acidosis and respiratory alkalosis (Tortora, 2014). Disorders that results from bicarbonate (HCO3) concentration are metabolic acidosis and metabolic alkalosis. When the lungs cannot remove all of the carbon dioxide the body produces, a condition called respiratory acidosis occur. Respiratory acidosis has high level of PCO2 above 45mmHg and a blood level that drop below a pH of 7.35. Normally when you breathe, you inhale oxygen and exhale CO2. Excess CO2 in your
The simplest experiment for this type of situation would be to use red and blue litmus paper to distinguish between acids, bases and salts. Hydrochloric acid (HCl) makes blue litmus paper change color going from blue to red, making it an acid. Sodium hydroxide (NaOH) makes red litmus paper change color going from red to blue, making it a base. Sodium chloride solution (NaCl) is neutral, since it would only soak blue and red litmus paper, considering that it is a by product of when an acid and a base mix together, neutralizing each other.
An acid is a substance that produces hydrogen ions, H+ or hydrodium ionsH3O+ in solution. There are three “kinds of acids”: Arrhenius, BrØnsted-Lowry, and Lewis Acid. An Arrhenius acid is a substance the increases the concentration of hydrogen ion, H+ or hydronium ions H3O+when dissolved in water. You must have water. A BrØnsted-Lowry acid is any substance that donates a hydrogen ion, H+ to another substance. A Lewis acid is any substance that accepts a lone pair of electrons.A strong acid is one that breaks apart close to 100% when in solution (example HCl). When dissolved in water, HCl breaks apart into H+ and Cl- ions. Not all acids break apart. A weak acid is/are chemicals that do not break apart well. Acids have a sour taste, they are: corrosive and electrolytes. Acids react with active metals (group 1 or 2) to produce hydrogen gas, H2 They also react with bases to produce salt and water (a neutralization reaction). An Arrhenius base is any substance that increases the concentration of hydroxide ions (OH-) when dissolved in water. A BrØnsted-Lowry base is one that accepts a hydrogen ion, H+. A Lewis base is any substance that donates a lone pair of electrons. Bases have a bitter taste, bases react with acids to produce a neutralization reaction, and solutions that are basic feel slippery. On the pH scale, 7 is neutral. An acidic solution will have a greater hydrogen ion than hydroxide ion concent...
Acid-Base balance is the state of equilibrium between proton donors and proton acceptors in the buffering system of the blood that is maintained at approximately pH 7.35 to 7.45 under normal conditions in arterial blood. It is important to regulate chemical balance or homeostasis of body fluids. Acidity or alkalinity has to be regulated. An acid is a substance that lets out hydrogen ions in solution. Strong acid like hydrochloric acid release all or nearly all their hydrogen ions and weak acids like carbonic acid release some hydrogen ions.
Advocates of alkaline water believe that it can neutralize the acid in your bloodstream and help your body metabolize nutrients more effectively. The word “alkaline” in alkaline water refers to its pH level. Acidity is something that’s
In soft neutral water soap works very well. However in hard water those containing ions (calcium and magnesium ions) the soap reacts with the ions forming insoluble salts, scum which settles on fabrics and around the bath. A scum is also the result when soap is used in acidic water. Soap is also affected by the nature of the dirt, for example perspiration breaks down the soap reducing the washing power. There are other disadvantages of soap, it deteriorates on storage lacks cleaning power and doesn’t rinse out completely.
Used to make soap Ammonia NH3 Yes Alkali pH 10 The main active ingredient in household cleaning fluids Calcium hydroxide Ca(OH)2 No Base Slaked lime used in agriculture Aluminium hydroxide Al(OH)3 No Base Used in some indigestion tablets Acids and Alkalis Neutralisation Neutralisation is the reaction of an acid with a base or alkali until the solution is neutral (pH7). In neutralisation, the acid and base (or alkali) both lose their properties and the solution becomes neutral. A salt and water are formed. Neutralisation is used in the following everyday situations: * Farmers use an alkali called calcium hydroxide (slaked lime or lime). This is spread on the fields or ploughed ground.