Essays Tagged: "acids and bases"
Acid base Extraction
purpose of this laboratory assignment was two-fold, first, we were todemonstrate the extraction of acids and bases, finally, determining what unknowns werepresent. Second, we were to extract caffeine ... base extraction involves carrying out simple acid/base reactions inorder to separate strong organic acids, weak organic acids neutral organic compoundsand basic organic substances. The procedure for t ...
Subjects: Science Essays > Chemistry
Should We Fix Acid Rain? What is acid rain and its causes? Should we fix it? By who and how should it be fixed?
ng the hydrogen ion concentration, were pH 1 is the strongest acid and pH 14 is the strongest base. Acids and bases of the same amount and strength can neutralise each other. Acid rain is caused by th ... ch when combined with the moisture in the air, may fall as rain with acidity of sulphuric or nitric acids. In Europe, the main cause of the acid rain is caused by the release of sulphur oxides. These ...
Subjects: Science Essays > Earth Sciences
Acids, Bases and pH Scales
What is an acid and a base?The first person that tried to define acids and bases was Arrhenius. His theory proposed that an acid is any substance that produces a pro ... ions, when dissolved in water; they are also called alkali. This theory was able to explain the way acids and bases react; the only substance that the theory was not able to explain was NH3. So the de ... il they are dissolved in the water.Although no theory has been accepted as a law to explain the way acids and bases react, the Brønsted-Lowry theory is the most accepted one.Properties of acids ...
Subjects: Science Essays > Chemistry
Chemistry Project: Acids and Bases & the pH Scale
Acids and Bases are two groups of chemical compounds that generally have oppositecharacteristics. Th ... chemical compounds that generally have oppositecharacteristics. They have there own unique traits, acids taste sour, turn litmus red whilebases taste bitter and turn litmus blue. The term pH relates ... ogen, the Bronsted-Lowrytheory does not require an aqueous medium. The Bronsted-Lowry definition of acids andbases also explains why a strong acid displaces a weak acid from its compounds andlikewise ...
Subjects: Science Essays > Chemistry
Carbon Dioxide content of softdrinks
1.0Theory1.1Acids and basesAn acid is any chemical compound that, when dissolved in water, gives a solution with ... is also a compound which donates a hydrogen ion (H+) to another compound (called a base).Generally, acids have the following properties:•Taste: Acids generally have a sour taste•Touch: Stron ... lowing properties:•Taste: Acids generally have a sour taste•Touch: Strong or concentrated acids often produce a stinging feeling on mucous membranes•Reactivity: Strong acids react aggre ...
Subjects: Science Essays > Chemistry
Ragweed
Arrhenius, Svante -- (Swedish Chemist) p 172-3, 468, 470. Known for work with acids and bases. Defined acids and bases in terms of their behavior when dissolved in water. Also su ... st), 870 Nobel Prize winner in Chemistry in 1980 for his work DNA sequencing. The sequence of amino acids for many such proteins have been worked out by cleaving them into smaller pieces and analyzing ...
Subjects: Science Essays > Chemistry
Scientenstences
Arrhenius, Svante -- (Swedish Chemist) p 172-3, 468, 470. Known for work with acids and bases. Defined acids and bases in terms of their behavior when dissolved in water. Also su ... st), 870 Nobel Prize winner in Chemistry in 1980 for his work DNA sequencing. The sequence of amino acids for many such proteins have been worked out by cleaving them into smaller pieces and analyzing ...
Subjects: Science Essays > Chemistry
Chem Labs
se refer to pages 484-486 in the Nelson Chemistry textbook.Problem What effect does the addition of acids and bases have on a buffer? Prediction According the background information, acetic acid will ... lysis It was observed that the buffer experienced no notable pH change after the addition of strong acids and bases. The following equations explain the results.Na+(aq), OH-(aq) (SB), CH3COOH(aq) (SA) ...
Subjects: Science Essays > Chemistry
Chem Labs
se refer to pages 484-486 in the Nelson Chemistry textbook.Problem What effect does the addition of acids and bases have on a buffer? Prediction According the background information, acetic acid will ... lysis It was observed that the buffer experienced no notable pH change after the addition of strong acids and bases. The following equations explain the results.Na+(aq), OH-(aq) (SB), CH3COOH(aq) (SA) ...
Subjects: Science Essays > Chemistry
Lewis Acids and Bases
Lewis Acids and BasesLewis acids and bases play an important role in chemical reactions because, except ox ... ons show certain specific characteristics: bitter taste, feel slippery, and turn litmus paper blue. Acids in water solutions show these most common characteristics: sour taste, react with metals, and ... l reactions, such as acid and base interactions, derives from acceptance of the Lewis definition of acids and bases, which alternated the earlier Brønsted-Lowry concept. According to Lewis defi ...
Subjects: Science Essays > Chemistry
OPEN - ENDED INVESTIGATION
drogen atom making the anthocyanin smaller and changing its colour to blue-green. We also know that acids are proton (H+) donors and bases are proton acceptors. Therefore pH indicators are themselves ... nt that is dissociated into the distilled water now can be used to distinguish between and classify acids and bases due to colour change.In this experiment, the natural indicators will be prepared. Th ...
Subjects: Science Essays > Chemistry
Determine Unknown Element in Monoprotic Acid
The objective of the experiments also was to know the characteristic of acidic gas and alkaline gas.Acids are compounds which donate H+. Meanwhile, bases are simply defined as compounds that produce O ... onate H+. Meanwhile, bases are simply defined as compounds that produce OH- ions. Neutralization of acids occur when they react with bases to form salt and water molecule at pH 7. Strong acids and bas ...
Subjects: Science Essays > Chemistry