Learning Expectation: We are learning:
Students could be given…
Students will be asked to…
1.
some substancesdissolve and some do not
6 substances
•Determine if they dissolve or not •Determine the degree to which substancesdissolve
2.
that solutions are composedof a solute and solvent
•Determine if the mixture is a solution or not
3.
to distinguish between the meaning of many terms related to solutions
Examples of mixtures -sand + water -potassium permanganate + water Terms: solute; solvent; soluble; insoluble; dissolve; dissolved
4.
that solubility is a measure of the amount of solute that can dissolve in a solvent at a given temperature
The term
5.
that solutions can be dilute or concentrated
Lemonade
•Give multiple definitions of the term •Recall the units of measurement for the solute, solvent and solubility in general •Convert solubility measurements from g/100mL to g/mL Describe the taste of a dilute lemonade solution vs. a concentrated lemonade solution
6.
to determine if a solution is saturated
Solutions
Determine if the solution is saturated
7.
to calculate concentration
Quantities of solute and solvent
Calculate the concentration of each solution with proper units
8.
that solubility is a characteristic property of matter
•Two substancesat the same temp •Graph paper •Solubility chart
•Measure and compare their solubility in water •Gather and graph data from a solubility simulation (“gizmo”) •Interpret the graph and analyze the effect of temperature on solubility of solids
9.
an unknown soluble substance can be identified based on its solubility if temperature is known
•temperature •a solubility chart •an unknown sample of soluble solid •Salt and Water •Ethanol and Water
Determine by group consensusthe identity of an unknown soluble solid substance
11. to separate soluble and insoluble mixtures through filtration and evaporation
Sample of rock salt
Separate and isolate the components using filtration and evaporation
12. to separate mixtures of multiple solutes using chromatography
Chromatography paper, solutes and solvent
13. to measure the effect of solutes on the properties of a solvent
Salt, water
Analyze the effect of different solutes on melting and boiling points
Solders (each containing different solutes with tin)
Analyze the effect of different solutes on melting point
10. whether mass and volume are conserved when making a solution
•Identify the solute and solvent in each Use each term appropriately when describing examples of mixtures
Determine whether mass and volume are conserved and why
Create and analyze chromatograms to identify matter
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