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Unit Five. Solubility Equilibrium. Review. ___________________  a substance which dissolves to yield a solution with ions that can conduct electricity Eg. (NH 4 ) 3 PO 4(s)  3NH 4 + (aq) + PO 4 3- (aq) HCl 4(g)  C 2 H 2(g) . An _______ solution contains ions.

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Unit Five

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unit five

Unit Five

Solubility Equilibrium


___________________ a substance which dissolves to yield a solution with ions that can conduct electricity

Eg. (NH4)3PO4(s)  3NH4+(aq) + PO43-(aq)

HCl4(g) 

C2H2(g) 

An_______solution contains ions.

An ______________solution contains only neutral molecules.

how do you know if a compound will form an ionic or molecular solution
How do you know if a compound will form an ionic or molecular solution?

These are some guidelines, but there are exceptions:

 _______ compounds consisting of a metal and a non-metal are likely to form ionic solutions

Eg. FeCl3(s) Fe3+(aq) + 3Cl(aq)

  • A compound with ___________________ ions will likely from an ionic solution

Eg. (NH4)2Cr2O7(s) 2NH4+(aq) + Cr2O72(aq)

NOTE: In Chem. 30, we will only be working with compounds with 1+ and 1- ions. Eg. NaH3P2O7(s) Na+(aq) + H3P2O7(aq)

 _______________ compounds (AKAcovalentcompounds) made of 2 or more non-metals, especially_________________compounds are likely to be a molecular solution

Eg. ClO2(l) ClO2(aq)

Eg. CH3OH(l) CH3OH(aq) (organic b/c it starts

with C)

in chemistry 20
In Chemistry 20…

The _______________________ of a substance is the maximum amount of the substance which can dissolve in a given amount of solvent @ a giventemp.

A solution which has dissolved the “max. amount” of a substance is said to be ____________________.

Once a solution has been saturated the addition of more substance will cause it to sink/float undissolved in the solution.

in chemistry 30
In Chemistry 30…

The _____________________ of a substance is the __________________ concentration of the substance @ a given ______________

The solubility is referred to as the ____________ solubility where the [] is expressed as “moles/litre”

A substance is said to form a saturated solution if the dissolved substance is in _____________with some of the __________________ substance.

saturation exists when
Saturation exists when:

some undissolved material is present

equil. Exists b/t the dissolved and the undissolved material

Eg. AgBrO3(s) Ag+(aq) + BrO3(aq) Dissolving equation

a closer look
A Closer Look

In the beginning…

AgBrO3(s) Ag+(aq) + BrO3(aq) = dissolving rxn.


Ag+(aq) + BrO3(aq) AgBrO3(s) = ________________ rxn.


AgBrO3(s) Ag+(aq) + BrO3(aq)


 “Solubility Equilibrium I” handout; Q 1 – 7.