CHEM 031 Lecture Notes - Lecture 20: Gas Constant, Intermolecular Force, Boiling Point

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lavenderreindeer612

11 Nov 2017

School

University of Vermont

Department

Chemistry

Course

CHEM 031

Professor

Alan Chant

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Document Summary

Pairs of liquids that are soluble, mix well. Pairs of liquids that have limited solubility, do not mix well. Attractive forces between the water molecules are stronger than the attractions of the water molecules for the other liquid. As you increase the number of carbon in a carbon chain, the solubility of that compound in h2o goes down. Solubility depends in part on the attractive forces of solute and solvent molecules. Polar substances dissolve in polar solvents and nonpolar molecules dissolve in nonpolar solvents. When mixing solutions, you can tell which liquid is which (like when oil and water) by looking at the density, as the denser liquid will go to the bottom. 1. 00 cp is the viscosity of h20 at 20 c. 1 poise = 1 p = 1 g/cm x s. The stronger the intermolecular forces, the higher the viscosity.

Related Questions

An unknown liquid solute is added to the solvent water, the two liquids are miscible. the temp drops. true or false:
a. the entropy of the solution increases compared to the pure substance
b. the process is endothermic
c. the intermolecular attractions are stronger in the solution than the intermolecular attractions in the pure substances
d. delta H mix is negative
e. the liquid is likely nonpolar

bluealligator624

Questions: THANK YOU IN ADVANCE

1. WHAT IS THE TERM FOR THE CONCENTRATION EXPRESSION THAT RELATES THE MOLES OF SOLUTE DISSOLVED IN EACH LITER OF SOLUTION?

A. MOLARITY

B. MASS/MASS PERCENT

C. MOLALITY

D. PARTS PER MILLION

E. NONE OF THESE

2. WHAT IS THE TERM FOR A SOLUTION CONTAINING THE MAXIMUM SOLUTE THAT CAN DISSOLVE AT A GIVEN TEMPERATURE?

A. SATURATED

B. SUPERSATURATED

C. UNSATURATED

D. CONCENTRATED

E. NONE OF ABOVE

3. WHICH OF THE FOLLOWING ILLUSTRATES THE LIKE DISSOLVES LIKE RULE FOR TWO LIQUIDS?

A. a POLAR SOLUTE IS MISCIBLE W A NONPOLAR SOLVENT

B. A NONPOLAR SOLVENT IS MISCIBLE WITH A POLAR SOLVENT

C. A POLAR SOLUTE IS IMMISCIBLE WITH A POLAR SOLVENT

D. A NONPOLAR SOLUTE IS MISCIBLE WITH A NONPOLAR SOLVENT

E. NONE OF ABOVE

4. APPLY THE LIKE DISSOLVES LIKE RULE TO PREDICT WHICH OF THE FOLLOWING LIQUIDS IS MISCIBLE WITH WATER

A. ETHANOL, C2H5OH

B. TOLUENE, C7H8

C. CARBON TETRACHLORIDE, CCL4

D. ALL OF THESE

E. NONE OF THESE

5. WHICH OF THE FOLLOWING INCREASES THE RATE OF DISSOLVING FOR A SOLID SOLUTE IN A SOLVENT?

A. HEATING THE SOLUTION

B. GRINDING THE SOLUTE

C. STIRRING THE SOLUTION

D. ALL OF THE ABOVE

E. NONE OF THE ABOVE

6. WHAT IS THE MASS OF SOLUTE DISSOLVED IN 10.0 G OF A 5.00% SUGAR SOLUTION?

A. 0.900g

B 9.50 g

C 0.500g

D 0.180 g

E 10.0 g

THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!

I can't seem to figure this one out. thank you!

BAEDitemViewlassignmentProblemiD-830644918offset next 121C1 12 Introduction to Solutility and Solution Formation troduction to Solubility and Solution Formation arning Goal understand the solubility of a solute in a solvent, the dissoltion p peocess, and the properties that afect the rate of dissoluÅ¡on ocess, and the properties that affed the rate of cola has a certain amount of carbon dioxide dissolved in t The cola is theretore olecular level, the dissolution process involves breaking intermolecular forces of aty action rious parameters, such as temperature, pressure, the nature of the solute, and the r example an incresse in temperature may increase the rate of dissoludon for solutions hwolving solds an example of a solution of gas in waler. The carbon daxide gas is the solute and it is diessved in water,which is nature of the solvent One can increase or decrease the solubility of solute by changing hese parameters e f the solvere At the among the solute molecules and forming new ones with the solvent moleciles The solublty af a solute in a salent depend art A The properties of a solute and its solubility in liquid solvents A solution is a homogenous mixture of solute and solvent There are diHarent types of soluions. A carbonated drink ia an example of a solution where the solute is a gas and ths saveet is a iquid Sugar crystas a in water is an example of a solution where the solute is a solid and the solvent is liquid Aceic acid is miscible in water, forming a solution commonly known as vinegar ln this case both the solure and the sohen iquids The solubility of solute in a solvent depends on various parsmeters, such as temperature pressura, tha nature of the solute, and the nature of the salvent Considaring thesa paranters iderdfy the ts correct for the solublity of a solute in a solvent Check all that apply Hints Table salt dissolves in water to form a solution Zinc sullate is soluble in water Gases are readly soluble in water t higher tamperatures Carbon dioxide gas will be more soluble in water when the partial pressure is high Propanol and heptane are miacible Dei My Awers Give Up

CHEM 031 Lecture Notes - Lecture 20: Gas Constant, Intermolecular Force, Boiling Point

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