Solubility Ch 9.1 :Solubility Only. Alloys: a mixture of metal with one or more elements (ex steel, bronze, penny) Solution: Homogenous mixture dealing.

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Presentation transcript:

Solubility Ch 9.1 :Solubility Only

Alloys: a mixture of metal with one or more elements (ex steel, bronze, penny) Solution: Homogenous mixture dealing with liquids (koolaid, soda) Examples: (don’t need to copy) – 14K gold (mixture of copper and silver) – Bronze (mixture of Zinc & Copper ) – Steel (mixture of metals and carbon) – Stainless steel (chromium & nickel dissolved in Iron) Alloy & Solution

Solute & Solvent Solute = the dissolved substance Solvent = the substance that does the “dissolving” – Water is the universal solvent

Solubility & Temperature Solubility is a measure of how much solute can be dissolved in a given volume or mass of solvent

Saturated and Unsaturated Unsaturated: Any solution that can dissolve more solute at a given temperature Saturated: any solution that contains all the solute it can hold at a particular temperature.

Checking for understanding Q/A

Increase vs. decreasing solubility

Which salt is LEAST soluble at 0 ºC? A. Ce 2 (SO 4 ) 3 B. KNO 3 C. KClO 3 D. K 2 Cr 2 O 7

Which of these salts decreases in solubility as the temperature increases. A. K 2 Cr 2 O 7 B. KClO 3 C. KNO 3 D. Ce 2 (SO 4 ) 3

How many grams of sodium nitrate, NaNO 3, are soluble in 100 g of water at 10 ºC? A. 100 grams B. 80 grams C. 40 grams D. 10 grams

Which salt is LEAST soluble at 50 ºC? A. Ce 2 (SO 4 ) 3 B. K 2 Cr 2 O 7 C. KNO 3 D. KClO 3