NH 3 has a solubility of 60g at 18 0 C in 100.0mLof water. KNO 3 has a solubility of 60g at 38 0 C in 100.0mLof water. HCl has a solubility of 60g at 48.

Slides:



Advertisements
Similar presentations
Solubility. Solubility = the max amount of solute that can be dissolved in a solvent Many solids and gases dissolve in water As you increase the temperature,
Advertisements

Solubility Do Now: p.4. Remember…likes dissolve like Things that dissolve in water – Soluble ionic – Acids (ex HCl) – Bases (ex. NaOH) – Polar covalent.
Solutions. Topics  Solution process  Saturated, unsaturated, supersaturated  Miscibility, solubility  Hydrophobic, hydrophilic  Hydration, solvation.
Explain which factors can affect solubility of solids, liquids and gases.
Solutions.
Advanced Chemistry Notes Solution Notes. Solutions Solutions – homogeneous mixtures of two or more substances Made up of: –Solvent – substance that does.
Investigating the Cause
Chapter16 Solutions 16.1 Properties of Solutions.
Solubility Curves Each substance has its own unique solubility which can be displayed on a graph.
Solubility and Solubility curves
Reading Solubility Curves
Solubility and Solubility curves. Solubility The solubility of a substance is the mass required to make a saturated solution in a given quantity of solvent.
Saturated, Unsaturated & Supersaturated. A saturated solution is one in which no additional solute can dissolve in the solvent at that temperature. If.
UNIT 1C Reading Solubility Curves. What is Solubility? Solubility: Solubility: the maximum amount of solute that will dissolve in a certain amount of.
Solubility Define: miscible, saturated, unsaturated, solubility, supersaturation. Describe factors that effect solubility. Use “solubility rules” to predict.
Solutions and Solubility Solution- a homogeneous (blended) mixture of 2 or more substances. Solute- dissolved species in a solution. The smaller component.
Solutions Part I: The Solution Process. Solution:
Solubility Do Now: p.4. Remember…likes dissolve like Things that dissolve in water – Soluble ionic – Acids (ex HCl) – Bases (ex. NaOH) – Polar covalent.
Factors Affecting Solubility. What is Solubility? Describes the amount of solute that dissolves in a solvent.
Solutions
Chapter 13 Water and Its Solutions Section 13.2 Solutions and Their Properties.
1)How many grams of solute are needed to saturate the given mass of H 2 O at the given temperature. A. at 40 o C 40 g KCl 100 g H 2 O B. at 10 0 C 80 g.
Measuring solubility of solids The solubility of a substance refers to the maximum amount of that substance that can be dissolved in a given quantity of.
Solubility Curves Day 65 – Solubility and Saturation - Solubility Curves Lesson: PPT, Try This Activity page 317 old text demo Handouts: 1. Solution.
EXOTHERMIC ENDOTHERMIC Why upon mixing do some solutions get cold while other release heat?
Solubility Curves. A solubility curve (see Table G) shows the maximum amount of solute that will normally dissolve in a given amount of a solvent over.
Solubility. Solubility Curves show how much solute will dissolve in water at a given temperature Table G shows a solubility curve.
Solubility.
06 – using a solubility TABLE & SOLUBILITY CURVES
Solubility. Dissolving Particles of the solute move into the solvent.
Aim: How can we determine the amount of solute in a solution? Do Now: 1.Take out a calculator and reference tables. 2.What are the factors that can change.
30/09/99 Solubility curves
Solutions and Solubility Chapters 15 and 16. Solution Homogeneous Mixture Uniform Throughout.
Solubility Curves The amount of a solute that will dissolve is a solvent depends upon the temperature of the solution.
Solubility and Temperature. Solubility and Average Kinetic Energy The temperature of a solvent can have a big effect on the solubility of a solute. Many.
Ch. 8 - Solutions How Solutions Form Solubility and Concentration.
Solubility The maximum quantity of the substance, expressed in grams, that will dissolve in a certain solvent at a specific temperature. S-C-9-1_Solubility.
SOLUTIONS If you are not part of the SOLUTION, you’re part of the PRECIPITATE!
Solubility PrecipitationMolalityEndothermicExothermic.
Ch. 8 Solutions, Acids, & Bases I. How Solutions Form  Definitions  Types of Solutions  Dissolving  Rate of Dissolving.
Solubility Practice Problems
Solubility and Temperature
SOLUBILITY.
Aim: How can we describe solutions?
H.W. # 17 Read p. 472 (sec. 15.2) Study class notes
8.2 Solubility and Concentration
using a solubility TABLE & SOLUBILITY CURVES
How much is the solubility of potassium
Solubility Curves.
Solubility Curves.
Solubility The maximum quantity of the substance, expressed in grams, that will dissolve in a certain solvent at a specific temperature.
SOLUTIONS AND SOLUBILITY
Solubility Curves Each substance has its own unique solubility which can be displayed on a graph.
Solubility.
Solubility Curves The amount of a solute that will dissolve is a solvent depends upon the temperature of the solution.
Solutions.
Solubility and Solubility Curves
Mixtures (Solutions) Heterogeneous Homogeneous Solution Heterogeneous
Solubility Curves The amount of a solute that will dissolve in a solvent depends upon the temperature of the solution.
If you are not part of the SOLUTION, you’re part of the PRECIPITATE!
Aim: How does temperature affect the solubility of solids, liquids, and gases? Do Now: Increasing temperature of a solution _______________the solubility.
Solutions Chapters 13 and 14.
C SOLUBILITY AND PRECIPITATION
Word Problems using Reference Table G
Solutions.
Read two….& test KVJSBJ.
Q2: Draw a picture of a solution and label the parts.
Aim: How to describe the different types of solutions
Introduction to Solutions
Chapter 14 Solutions.
Presentation transcript:

NH 3 has a solubility of 60g at 18 0 C in 100.0mLof water. KNO 3 has a solubility of 60g at 38 0 C in 100.0mLof water. HCl has a solubility of 60g at 48 0 C in 100.0mLof water. NH 4 Cl has a solubility of 60g at 66 o C in 100.0g water. KClO 3 has a solubility of 60g at 100 o C in 100.0g water.

NH 3 has a solubility of 60g at 18 0 C in 100.0mLof water. KNO 3 has a solubility of 60g at 38 0 C in 100.0mLof water. HCl has a solubility of 60g at 48 0 C in 100.0mLof water. NH 4 Cl has a solubility of 60g at 66 o C in 100.0g water. KClO 3 has a solubility of 60g at 100 o C in 100.0g water.

The solubility of NaNO 3 at 27 o C is about 94g in 100mL of water. The solubility of NaNO 3 at 52 0 C is 120g in 100mL of water. As you see from the graph the solubility of NaNO 3 INCREASES as temperature INCREASES. This is due to the fact that the dissolving of this salt is ENDOTHERMIC, energy absorbing, q is +.

At 10 o C NH 3 has a solubility of 70 grams of NH 3 in 100 grams of water. At 70 o C NH 3 has a solubility of 19 grams of NH 3 in 100 grams of water. The solubility of NH3 DECREASES as the temperature INCREASES, Therefore the dissolving of ammonia is EXOTHERMIC – it cannot give off heat at higher temperatures which hinders dissolving. The heat transfer is negative (-q) for this reaction. This is typical of gasses which dissolve poorly at higher temps.

U DO IT NOW 1/29/07 1.What will occur if NaNO 3 is cooled from 52 o C to 27 o C? 2.Which is the most soluble substance at 37 o C, which is the least soluble. 3.Identify the gases in the table. 4. What will occur as the temp. of NH 3 (aq) in solution is increased from 10 o C to 70 o C?

The solubility of NaNO 3 at 27 o C HOLDS about 94g in 100mL of water. The solubility of NaNO 3 at 52 0 C HOLDS 120g in 100mL of water. As the temperature drops from 52 o C to 27 o C the solubility drops from 120g to 94g. The difference of 26g will precipitate out as a solid on the bottom of the vessel. The 120g that is saturated at 52 o C is supersaturated at 27 o C. At 27 o C only 94 g can dissolve, 26g of the 120g must precipitate to reach 94g. (52 0 C,120g) (27 0 C, 94g)

At 52 o C 120g of NaNO 3 will dissolve, the solution has 120g in 100g water. The electrostatic attractions to begin to form the ionic crystal lattice. COOLING A precipitate forms. Energy is needed to break the electrostatic attractions of the lattice, (lattice energy) The solution that could carry 120g at 52 o C cannot hold that much at lower tamps precipitate will form as it cools. COOLING CAUSES