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CHEM 110 Lecture Notes - Lecture 13: Aqueous Solution, Lead, Molar Concentration

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ceruleanwolf285

1 Oct 2017

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Simon Fraser University

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Document Summary

A homogeneous mixture of 2 or more substances: 1 phase, most often liquid phase. Solvent: the component of the mixture present in the greatest amount. Solute: the component present in the smaller amount. Aqueous solution (aq): water is the solvent. Solubility: maximum amount of solute that will dissolve in a given amount of solvent at a certain temperature. Saturated solution: a solution that contains the maximum amount of dissolved solute at a certain temperature, when the amount of dissolved solute in solution corresponds to the solute"s solubility in the solvent. Unsaturated solution: not saturated, more solute can be dissolved in the given amount of solution. Agno3 soluble; all nitrate containing compounds are soluble. Nh4cl soluble; all ammonium containing compounds are soluble. Pbbr2 insoluble; generally bromide containing compounds are soluble but when combined with. Mgso4 soluble; all sulfate containing compounds are soluble with a few exceptions but combined with mg2+ is not an exception.

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Related Questions

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

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!!!!!!!!!!!!!!!!!!!!!!!!

bromine br2(l) is more soluble in dichloromethane

T. The solublity of ones fn re and decreasing pressuure (1) increasing pressure and increasing temperature (3) decreasing temperature and increasing pressure (2) ally decreases with increasing temperature and decreasing pressure (4) decreasing temperature and decreasing pressure. 8. When a nonvolatile solute s uch as ammonium sulfate is dissolved in a solvent like water, one of the (1) a decrease in the boiling point of the liquid (2) an increase in the vapor (4) a decrease in the observed effects is pressure of the solvent freezing point of the liquid (3) an increase in the vapor pressure of the solute . In which of the following solvents would you expect kBr to be most soluble? (1) CClu (carbon tetrachloride) 0. Calculate the mass percent of HOCH-CH2OH in a solution made by dissolving 6.4 g of HOCHCH20H in 11. During osmosis (1) pure solutes diffuse through a membrane but solvent does not (2) pure solvent (2) CHsCH2OH (ethanol) (3) CaHe (benzene (4) CoH14 (hexane) 48.2 g of water. (1)13.3% (2) 6.9% (3) 7.4% (4) 11.7% diffuses through a membrane but solutes do not (3) pure solvent and a solution both diffuse at the same time through a membrane (4) gases diffuse through a membrane into a solution and build up pressure 12. Which of the following gases is expected to have a highest solubility in water? (1) HCI (2) N2 (3) CH (4) O2 13. How many grams of water are needed to dissolve 27.8 g of ammonium nitrate NH NOs in order to prepare a (1)0.157 g (2) 769 g (3) 36.2 9 0.452 m solution? The molar mass of NH4NOs is 80.04 g/mol. (4) 57.0 g (1) enough solvent to make 14. To make a 3.0 m solution, one could take 3.00 moles of solute and add L of solution (2) enough solvent to make 1.00 kg of solution (3) 1.00 L of solvent (2) 1.00 kg of solvent 15. What volume of 2.00 M CHOH solution is needed to provide 0.500 mol of CHJOH? (1)3,.12 mL (2) 10.0 mL (3) 167 mL (4) 250 mL 16. Assuming 100% dissociation, which ofthe follow ng compounds is listed correctly with its van't Hoff factor? (4) Ala(SO4), i-5 (2) NH4N03, i#3 (3) Sucrose, i:0 (1) NaS0+/-2 17. Calculate the van't Hoff factor of NasPO in a 0.40 m solution whose freezing point is -2.6C. 15 pts]