Solutions Test Flashcards
A solution that contains more than the maximum amount of solute that is unstable
supersaturated
A homogeneous mixture
solution
Does not conduct electricity when dissolved in water due to the lack of ions
non-electrolyte
substance doing the dissolving, usually present in a greater amount
solvent
Liquids that do not mix easily, forming a heterogeneous mixture
immiscible
A solution that holds the maximum amount of solute per amount of solution under given conditions
saturated solution
A general term for a solution with a large amount of solute
concentrated solution
Substance being dissolved, usually present in a lesser amount
solute
A general term for a solution with a small amount of solute
dilute solution
Conducts electricity when dissolved in water due to the presence of ions
electrolyte
A solution that has less than the maximum amount of solute dissolved
unsaturated
Liquids that mix easily, forming a homogeneous mixture
miscible
How to make a solid dissolve faster
agitate, increase surface area, increase temp
How to make a solid solute dissolve
increase the temperature
Why won’t oil and water mix?
The polar water molecules have partial charges while the nonpolar oil has no charges. The partial charges on water are attracted to other water molecules with partial charges rather than the noncharged oil. The IMF of water bonding with water are stronger than the IMF of water bonding with oil.
How to make more of a gas solute dissolve
increase the pressure, decrease the temp
What mass of NH4Cl can dissolve in 100 mL of water at 90C?
(just include the value not the unit)
70
Which compound is the most soluble at 10C?
KI
80 g of NaNO3 is added to 100 mL of water. How many more grams should be added to have a saturated solution at 50C?
35 (32-37)
A supersaturated solution of potassium nitrate is made by saturating a 100mL solution at 60º C then cooling it to 10ºC. When the solution is disturbed, what mass of potassium nitrate will precipitate out of solution? (just include the value not the unit)
80 (76-80)
When 130 grams of KNO3 is dissolved in 100 mL of water (and ALL of it is dissolved) at 60C, is the solution unsaturated, saturated, or supersaturated?
super saturated
How many grams of KCl can dissolve at 10 oC? (just include the value not the units)
30
Water freezes at O degrees Celsius and boils at 100 degrees Celsius. I have added salt to the water. Describe the new boiling point.
Higher than 100C
Water freezes at O degrees Celsius and boils at 100 degrees Celsius. I have added salt to the water. Describe the new freezing point.
Lower than 0C
