{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

tCH 7.3 - Solubility Solubility tells us a solutes ability...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Solubility Solubility tells us a solutes ability to dissolve into a solvent o 200g of sucrose dissolves into 100ml of water, so sucrose is fairly soluble in water. o 200g of sucrose saturates the solution and no more can dissolve at this point
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
If something will not dissolve into a solvent it is said to be insoluble . o Oil does not dissolve into water instead it forms its own layer on top of the water. o Likewise gold does not dissolve into water either.
Background image of page 2
A solute that has no point of saturation is said to be infinitely soluble o Alcoholic drinks
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Rules for Solubility Like dissolves like o Polar solvents will dissolve polar solutes o Nonpolar solvents will dissolve nonpolar solutes o Examples: o Water is a polar solvent, it will dissolve salts, sugar and other polar things o Acetone is nonpolar, it will dissolve paint, Styrofoam and other nonpolar things
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Temperature Affects  Solubility Have you ever noticed sugar dissolves much faster into hot tea than it does into iced tea? o This is because solubility increases as temperature increases
Background image of page 6
The reason for this is each water molecule in a hot liquid has more kinetic energy and thus collides with the solid more vigorously o Thus the molecules in the solid are more easily separated from one another so it dissolves faster
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Many times a hot liquid can actually hold more solute than it can when its cold
Background image of page 8
Precipitation If a saturated solution of sugar is made at 100°C then allowed to cool to 20°C, some of the dissolved sugar will drop out of solution o This is called precipitation o A precipitate is the resulting material that falls out of the solution
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}