Essays Tagged: "ph range"
Acid-Base Titration Chemistry Formal Lab Writeup by A.Mm
AbstractBy using acid-base titration, we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the t ... he equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein's color range. The titration of acetic acid with sodium hydroxide result ... ration of ammonia with hydrochloric acid had an equivalence point that was also out of the range of phenolphthalein.. The methyl red indicator and the phenolphthalein indicator were unsuitable because ...
Subjects: Science Essays > Chemistry
Vibrational data discussion on the Adsorption of Phosphate on Pt(111) and Pt(100) studied in situ FTIR spectroscopy
rbed anions contribute to the description of the electrochemical double layer as well as add to the physiochemical properties of the electrified surface. In this study, phosphoric acid is one of the b ... best systems to monitor. In a previous study, it was discovered that the nature and geometry of the phosphate species is dependant upon applied potential. Using cyclic voltammetry and in situ FTIR spe ...
Subjects: Science Essays > Chemistry
Pepsin Experiment
rate and product also controls the rate of the reaction, providing biofeedback mechanism.Changes in pH will also denature the enzyme, by changing the shape of the enzyme, enzymes are also adapted to o ... the enzyme, by changing the shape of the enzyme, enzymes are also adapted to operate at a specific pH or pH range. Plot of enzyme activity as a function of the pH for several enzymes. Not that each e ...
Subjects: Science Essays > Chemistry
OPEN - ENDED INVESTIGATION
cators. Indicators are substances those have specific colours to which they change depending on the pH.For example anthocyanin is an indicator found in red cabbage that changes from purple to red in a ... a flower etc contain pigments of anthocyanin or curcumin and many others that change colour too the pH range. Anthocyanins are water-soluble pigments that may appear red, purple, or blue according to ...
Subjects: Science Essays > Chemistry
CHEMISTRY HSC MODULE 2 - THE ACIDIC ENVIRONMENT
oil composition.Classify common substances as acidic, basic or neutral.Strong acidic solution has a pH range of 1-3, whereby a weak acidic solution has a pH range of 4-6. However, a strong basic solut ... f 1-3, whereby a weak acidic solution has a pH range of 4-6. However, a strong basic solution has a pH range of 12-14, and a weak basic solution of 8-11. A solution of pH 7 is considered neutral. ACID ...
Subjects: Science Essays > Chemistry