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Pharm 124 Exam Questions And Accurate Answers
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Pharm 124 Exam Questions And Accurate AnswersClassification of titrations - ANSWER Based on the measurement
Based on the nature of the titrant used
Based on the principle of titration
Based on measurement - ANSWER Volumetry and Gravimetry
Volumetry - ANSWER Measurement of the volume of the titrant required to complete the
reaction
Gravimetry - ANSWER Measurement of the weight of the titrant required to complete the
reaction
Based on the nature of the titrant used - ANSWER Acqueous titrations and non-
acqueous titrations
Acqueous - ANSWER These titrations are based upon the titration of the sample solution
by using acqueous titrants such as hydrochloric acid and sodium hydroxide
Non acqueous - ANSWER These titrations are based upon the titration of the sample
solution by using non-acqueous titrants such as dimethyl formamide.
Based on the principle ot titration - ANSWER Acid base titration
Oxidation - reduction titration
Complexometric titration
Precipitation titration
Non acqueous titration
, Acid base titration - ANSWER These titrations are based upon the titrations of the acidic
and basic compounds of the consequent acids or bases
Example of acid-base titration - ANSWER Titration of Hydrochloric acid with Sodium
hydroxide
Titration of Potassium hydroxide with hydrochloric acid
- These reactions are mainly based upon the reactions of the hydrogen ion and
hydroxide iom to form water
Sub-classifications of the reactions of the acid-base titrations - ANSWER Acidimetry
Alkalimetry
Acidimetry meaning - ANSWER The titration of the free base or salts of weak acids with
a strong acid
Acidimetry example - ANSWER Titration of a strong base like Naoh with an acid like HCl
Alkalimetry meaning - ANSWER Titration of the free acids or salts of weak bases with a
strong base
Alkalimetry example - ANSWER Titration of a weal acid like acetic acid with a strong
base like NaOH
Applications of acidimetry and alkalimetry - ANSWER 1. Determination of alkalinity in
water
2. Determination of acid content in wine or fruit juices
3. Determination of acid content in milk
4. Determination of a total acid number TAN and total base number TBN in petroleum
products, edible or inedible oils and fats.
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