/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q-81P Question:聽A solution of an unkn... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 4: Q-81P (page 183)

Question:A solution of an unknown compound (3.0 g of the compound in 200 mL of solution), when placed in a polarimeter tube 2.0 dm long, was found to rotate

the plane of polarized light 18掳 in a counterclockwise direction. What is the specific rotation of the compound?

Short Answer

Expert verified

Specific rotation of the compound is -60.

Step by step solution

01

Explanation of formula

The specific rotation at aspecified temperature and wavelength can be calculated from the observed rotation using the formula,

Where,

[饾湺] = the specific rotation,

T= temperature in degrees Celsius,

l =is the wavelength of theincident light (when the sodium D-line is used,lis indicated as D),

饾湺= The observed rotation,

02

Calculation

Concentration of the compound (c) = = 0.015 g/ml.

Observed rotation (饾湺) = -18掳 as rotation is counter-clockwise.

Length of the polarimeter = 20cm.

So, the specific rotation = = -60.

The specific rotation of the compound is -60.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Tamiflu is used for the prevention and treatment of flu. What is the configuration of each of its asymmetric centers? (How Tamiflu Works is explained in Section 22.11.)

Question: Name the following compounds using R,S designations:

Question:A compound has a specific rotation of -39.0. A solution of the compound (0.187 g/100 mL) has an observed rotation of -6.52掳 when placed in a polarimetertube 10 cm long. What is the percent of each enantiomer in the solution?

a) Do the following compounds have any asymmetric centers?

b) Are the compounds chiral? (Hint: Make models.)

  1. CH2=C=CH2
  2. CH3CH=C=CHCH3

Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?
See all solutions

Recommended explanations on Chemistry Textbooks

Physical Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Chemical Analysis

Read Explanation

Kinetics

Read Explanation

Chemistry Branches

Read Explanation

Making Measurements

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.