Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Organic Compound Formula Determination Quiz

5 Questions

5 Views

Organic Compound Formula Determination Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the aim of quantitative elemental analysis?

Estimation of carbon and hydrogen in the organic compound

Determination of the formula of the organic compound

Detection of the elements found in a pure compound

Detection of the percentage of each element in the compound (correct)

What is used to absorb water formed during the combustion of organic compounds?

Anhydrous calcium chloride (correct)

CuO

CuSO4

Potash bulb containing KOH solution

What is the principle behind the estimation of carbon and hydrogen using Modified L Method?

Organic compounds are reduced when their decomposition products come in contact with red-hot cupric oxide

Organic compounds are completely oxidized when their decomposition products come in contact with red-hot cupric oxide (correct)

Organic compounds are unaffected when their decomposition products come in contact with red-hot cupric oxide

Organic compounds are partially oxidized when their decomposition products come in contact with red-hot cupric oxide

What does the increase in weight in the potash bulb correspond to?

<p>Carbon dioxide formed during combustion</p> Signup and view all the answers

What is the purpose of using red-hot CuO in the estimation of carbon and hydrogen?

<p>To oxidize organic compounds completely</p> Signup and view all the answers

Study Notes

Quantitative Elemental Analysis

The aim of quantitative elemental analysis is to determine the proportion of elements present in a compound.

Combustion of Organic Compounds

Calcium chloride is used to absorb water formed during the combustion of organic compounds.

Estimation of Carbon and Hydrogen

Modified L Method

The principle behind the estimation of carbon and hydrogen using the Modified L Method is that carbon is oxidized to CO2 and hydrogen is oxidized to H2O.
The CO2 and H2O produced are absorbed by suitable absorbents, and the increase in weight of the absorbents corresponds to the amount of carbon and hydrogen present in the compound.

Potash Bulb

The increase in weight of the potash bulb corresponds to the amount of CO2 absorbed.

Estimation of Carbon and Hydrogen using CuO

Red-hot CuO is used in the estimation of carbon and hydrogen to oxidize the organic compound to CO2 and H2O.
The CuO acts as a catalyst to facilitate the complete combustion of the organic compound.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on the determination of molecular formula of organic compounds through qualitative and quantitative elemental analysis. Explore methods for estimating the percentage of carbon, hydrogen, and nitrogen in compounds.