1,2,3 Exercise 21. Why is the thermometer bulb placed just below the arm leading to the condenser?2. Sketch the ideal distillation curve for two miscible liquids (C vs. mL).3. Calculate the mole fraction of each compound in the following mixtures:a. 90.0 g methanol and 10.0 g of waterb. 5.0 g ethanol, 50.0 g methanol, and 5.0 g waterREFRACTIVE INDEXThe refractive index (n) of a compound is the ratio of the velocity of light in air to the velocof light in a sample medium of the compound. The refractive index is a physical property whiclike melting and boiling points, can be used to determine the purity of a compound. It is afunction of the polarizability of compounds, and is very interface of two different media.A beam of light is bent when it passes through the interface of two different media. The lighbeam bends because the velocity changes. The angle of bending or refraction (0.), depends ondensity and temperature of the media, the type of molecules present, and on the wavelength ofthe incident light. If a medium such as air is taken as a standard and the measurements arecarried out at the same temperature and same wavelength of light, the angle measured (as show-below) will be a physical property of the other medium...gLightᎾᎥOrAirSampleThe refractive index (RI) can be determined by computing the ratio of the sine of the angle ofincidence (the angle that incident light makes with an imaginary perpendicular to the intand sine of the angle of refraction (the angle that the light malathe same perpendicular). It can be m

Exercise 2 1. Why is the thermometer bulb placed just below the arm leading to the condenser? 2. Sketch the ideal distillation curve for two miscible liquids (°C vs. mL). 3. Calculate the mole fraction of each compound in the following mixtures: a. 90.0 g methanol and 10.0 g of water b. 5.0 g ethanol, 50.0 g methanol, and 5.0 g water

Exercise 2 1. Why is the thermometer bulb placed just below the arm leading to the condenser? 2. Sketch the ideal distillation curve for two miscible liquids (°C vs. mL). 3. Calculate the mole fraction of each compound in the following mixtures: a. 90.0 g methanol and 10.0 g of water b. 5.0 g ethanol, 50.0 g methanol, and 5.0 g water

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Maxwell speed distribution

Maxwell-Boltzmann distribution or commonly known as Maxwell speed distribution, explains the division of the energy levels of the molecules of an ideal gas on the basis of the statistical theory. In 1859, Scottish physicist James Clerk Maxwell established the context for the distribution of molecular velocities for random molecules moving in a closed environment. This theory was generalized in 1871 by German physicist Ludwig Boltzmann. He improvised the theory to express the distribution of energy levels among different molecules.

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1,2,3

Exercise 2
1. Why is the thermometer bulb placed just below the arm leading to the condenser?
2. Sketch the ideal distillation curve for two miscible liquids (C vs. mL).
3. Calculate the mole fraction of each compound in the following mixtures:
a. 90.0 g methanol and 10.0 g of water
b. 5.0 g ethanol, 50.0 g methanol, and 5.0 g water
REFRACTIVE INDEX
The refractive index (n) of a compound is the ratio of the velocity of light in air to the veloc
of light in a sample medium of the compound. The refractive index is a physical property whic
like melting and boiling points, can be used to determine the purity of a compound. It is a
function of the polarizability of compounds, and is very interface of two different media.
A beam of light is bent when it passes through the interface of two different media. The ligh
beam bends because the velocity changes. The angle of bending or refraction (0.), depends on
density and temperature of the media, the type of molecules present, and on the wavelength of
the incident light. If a medium such as air is taken as a standard and the measurements are
carried out at the same temperature and same wavelength of light, the angle measured (as show-
below) will be a physical property of the other medium...g
Light
ᎾᎥ
Or
Air
Sample
The refractive index (RI) can be determined by computing the ratio of the sine of the angle of
incidence (the angle that incident light makes with an imaginary perpendicular to the int
and sine of the angle of refraction (the angle that the light mala
the same perpendicular). It can be m

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