Acidity Research
By Kyan Mulji 9s
Table of content
What is acidity and some of its uses?
Before I can define acidity I would like to define an acid. An acid is a word originated from an latin word acere meaning sour in English. The general characteristics of acids are
1. They taste sour.
2. They are corrosive to metals
3. They turn litmus paper red
4. They have a PH of 1 to 6.
5. Usually gases or liquids
6. Frequently feel sticky
7. Acids nuetralise bases to form slats and water
8. They react with active metals to form hydrogen
9. React with carbonates to produce a salt, water and carbon dioxide
10. Turn methyl orange to red.
The ph scale can be used to determine how strong an acid is. One meaning the acid is very strong and six meaning the acid is very weak. Some examples of acids are in the table below
Formula Name Strong?
HCl hydrochloric acid yes
HBr hydrobromic acid yes
HI hydroiodic acid yes
HF hydrofluoric acid no
HNO3 nitric acid yes
H2SO4 sulfuric acid yes
H3PO4 phosphoric acid no
CH3COOH acetic acid no
The table above shows that most of the acids are very strong.
Acidity can be defined as the amount of acid found in a certain mixture for example in water.
Acids in industrys
Acids such as nitric acid, sulfuric acid, phosphoric acid have countless uses in industrys. Soe acids like acetic acid or the phosphoric acid in soft drinks are sold as consumer products. Other acids are used on synthesis of dyes, fertilizers, explosives, and many other chemical substances that are essential in our lives
Fertilizers
Fertilizers are essential to modern industrial agriculture. Two of the most important plant nutrients are nitrogen and phosphorus. Nitric acid, phosphoric acid, ...
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... that involves crushed limestone being mixed with water. This forms a slurry. It is then sparayed into the area containing sulfur dioxide. This reacts to form a aqueos slurry of calcium sulphate. Compressed air is then blown into this slurry. This oxididses the calcium sulfite to form calcium sulphate. The product is treated to remove excess waterand is disposed in land fills.
Another system is called the spray dry system. A slurry of alkali is njected into the flue gases. The heat in the flue gases causes water to evaporate. The sulfur dioxide reacts with the drying alkali solution to form a solidi reaction product. There is no waste water from this process.
Seawater scrubbing system – This is using the natural alkalinity of sea water ti aboarb acidic gases. The flue gases are trapped in a abosrbtion tower. This is where they flow aginst a current of sea water
For years farmers have been adding natural fertilizers to their crops. It is a big risk though. Over fertilizing is very dangerous. It puts high concentrations of salt into the soil. It can also affect the water resources nearby. Nitrogen, Phosphate, and Potassium are the basics of fertilizer. If a certain nutrient is short in supply the fertilizer might not work as well. Calcium, iron, manganese are also nutrients that might be needed. So don’t just trust the fertilizer bag that says it has all the nutrients, test it out. (Miller and Levine 717)
A condenser and heat reflux was used to prevent reagents from escaping. Then the solid product was vacuum filtered. The product was recrystallized to purify it and the unknown
Homeostasis is the internal chemical balance that occurs in all living things. The concentration of hydrogen ions and hydroxide ion creates acids and bases. They are measured using the pH scale, which runs from 0 to 14. In the scale 7 is neutral. To be considered an acid, the concentration of the ion must be between 0 and 6, To be considered a base, the concentration of the ion must be between 8 and 14. Most living things have a concentration range from 5.6 to 8.5. There are many exceptions to this rule, such as the pH
Hydrochloric acid is the clear colourless solutions of hydrogen chloride (HCl) in water, hydrochloric acid is also a highly corrosive substance and a strong mineral acid meaning they are formed from inorganic compounds, hydrochloric acid is a monoprotic acid meaning that it can only ionize one H+ ion. As a result hydrochloric acid can be used in a wide range of industrial practices such as removing rust from steel, ore processing, the production of corn syrup and making of PVC plastics. Hydrochloric acid is made using a very straight forward method which involves dissolving hydrogen chloride (HCl) in water, releasing the H+ cation and Cl- anion. In this aqueous form the H+ ion joins water to form a hydronium ion (H3O+)
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.
Since acids increase the amount of H+ ions and bases increase the amount of OH-ions. In the ph scale, the strength of acidity and basicity can be measured. The ph scale is a range of 1-14, with 7 as the neutral number. On the ph scale 8-14 is classified as a base and 1-6 is classified as an acid.
Hydrochloric acid is a strong and corrosive acid that is often used as a reagent in laboratories.
Chemical: Acids in foods and beverages such as citrus fruits, spices, wines and carbonated beverages; acids produced by acidogenic bacteria following carbohydrate exposure; acids from gastric regulation. (Wilkins, BS, RDH, DMD, 2013)
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.
The bacteria and wastewater is mixed in an aeration tank and therefore the contaminants are removed by action of sorption and series of breakdown by the bacteria.
The sap from pipelines is stepped quickly back to ability (to hold or do something) tanks at the sugarhouse or a focal (collection over time) area using a vacuum pump, while sap from (bowls/areas drained by a river) must be got together by hand and dumped into a social affair tank which moves it to the sugarhouse. From the ability (to hold or do something) tanks, the sap is regularly put through an invert (process of a liquid flowing through a very thin membrane) or RO machine taking a level of the water from the sap before bubbling. The disappearing (or wasting) procedure sends large clouds of sweet maple scented steam surging from the sugarhouse domes and steam stacks. An evaporator is the place the bubbling happens. Stainless steel container
For a reverse osmosis process the slow sand filters are most effective single pre-treatment for the industrial waste water. Sand filter is used a sand with a different size of a sand which is place layer by layer in a drum. The sand filter is generally used for to remove a order, Colour, Dissolved solid particles, Turbidity, organic materials and bacteria. Due to a law filter rate the waste water retain over a surface of large granule for several time before passing through bed various oxidation reaction take place during that period.
Acid rain is measured by using the pH scale. The pH scale is the measure of how acidic or basic a substance is, which ranges from
decomposed and the constituent ions are released into the soil, after which they are taken up by