Aim: What are the parts of a solution
Vocab Miscible – Capable of being mixed Immiscible – Cannot be mixed Soluble – able to be dissolved Insoluble – unable to be dissolved
Vocab Solubility - the amount of solute that will dissolve in a given amount of solvent at a certain temperature. Dissociation - breaking apart into its ions KCl(s) K+(aq) + Cl-(aq)
Matter Mixtures Pure Substance Elements Compounds Homogeneous Heterogeneous
What is the difference between a Homogeneous and a Heterogeneous Mixture?
What is a Solution? Another word for homogeneous Mixture is SolutioN Parts of a solution solvent solute Solvent dissolves the solute; solute is what is being dissolved.
What is an Aqueous Solution? An aqueous solution is a solution in which water is the solvent ( a substance is dissolved in water) Created by dissolving substance in water (aq) next to a substance means dissolved in water
Water H2O Draw the lewis Dot Structure for one molecule of water. Determine the symmetry of the molecule. Determine the polarity of the molecule.
Solvent properties of water Because water is a polar molecule, it can dissolve many ionic compounds and other polar molecules.
Solution process – Ionic Compounds in water http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/molvie1.s wf
Solution Process – Ionic Compounds in water When ionic compounds dissolve in water, ions dissociate and can freely move. Dissociation of NaCl in water When table salt (NaCl) is mixed in water
Using the key in your answer booklet, draw two water molecules in the box, showing the orientation of each water molecule towards the calcium ion.
Dissolving sugar Sugar lumps are made of sugar crystals packed together Each of these crystals contain many tiny sugar molecules. A solution of sugar and water contains a mixture of water molecules and sugar molecules. C6H12O6(s) + H2O(l) C6h12O6(aq)
Solution Process-Polar Molecules in Water When polar molecules dissolve in water, the molecules separate. Polar molecules have slightly negative and positive ends like a water molecule. The water molecules attach themselves to the solid polar crystals, pulling the molecules part from each other and dissolving the polar crystal.