Download presentation
1
Investigating the Cause
of the Fish Kill
2
Focus: Water as a solvent
How are solutions described? How do solutions behave? What are the possibilities?
3
C.1 Solubility of Solids in H2O
In a solution, the solvent is the dissolving agent and the solute is the dissolved substance -solvent is doing the dissolving -solute is being dissolved
4
C.1 Solubility of Solids in H2O
Kool-aid in water Salt in water Sugar in water GASES Carbon Dioxide in water (carbonated) Dissolved Oxygen in water (DO) LIQUIDS Food coloring Vinegar Ethanol
5
C.1 Solubility of Solids in H2O
The maximum amount of a substance that will dissolve in a specific amount of water is called solubility.
6
C.1 Solubility of Solids in H2O
How much salt will dissolve in 100 g of water at room temperature? Solubility of NaCl can be expressed in a solubility curve (graph). ~40g of salt dissolves in 100ml of water at 22°C ~200g of sugar dissolves in 100ml of water at 22°C
7
How much potassium nitrate dissolves in 100g of water at 50°C?
How much potassium nitrate would recrystallize if the solution cooled from 50 to 10°C? Which substance is more soluble at 0°C, 20°C, 70°C, 100°C? For which substances does solubility decrease as temperature increases? At what temperature will 50g of NH4Cl reach saturation?
8
C.1 Solubility of Solids in H2O
Saturated solution: The solvent contains as much dissolved solute as it can possibly hold at that temperature Unsaturated solution: The solvent contains less than the solubility at that temperature. Supersaturated: The solvent contains more than the solubility at that temperature. *Be able to describe solutions on graph using these terms.
Similar presentations
© 2024 SlidePlayer.com Inc.
All rights reserved.