Chapter 9 solutions Flashcards
what is the difference between a solute and solvent?
solute is mixed within the solvent
a solvent makes up the larger amount
what kind of polarity is necessary for a solution? for a heterogenous mixture?
solution: polar solvent +polar solute
polar solvent + ionic compound
nonpolar solvent + nonpolar solute
heterogenous mixture: nonpolar solvent + polar solute
polar solvent + nonpolar solute
When electrolytes dissolve in water, what happens?
the process of dissociation separates them into ions forming solutions that conduct electricity
when nonelectrolytes dissolve in water, what happens?
they do not separate into ions and their solutions do not conduct electricity
how many Eq in 1 mol of Ca?
Ca has a possible charge of 2+ so it will have:
2 eq / 1 mol
how many eq in 1 mol of Lithium?
1 eq Li+ / 1 mol Li+
how many equivalents in sulfate?
1
2
2
6
how do you find molarity of a solution?
solubility of solid salts increases or decreases with increase of temperature?
increase in solubility with increase temp.
solubility of gasses in H2O increase or decrease with increase in temperature?
decrease solubility with increase in temp.
solubility of gasses in H2O increase or decrease with increase of pressure?
increase solubility with increase in pressure (Henry’s Law)
how do you find mass percent?
how do you find volume percent?
how do you find mass/volume percent?