Solutions Flashcards
(28 cards)
What are solutions?
Homogeneous mixture with particles finely distributed
What r the ingredients in a solution?
Solute + solvent
Solute vs solvent?
U- what gets dissolved. V- what does the dissolving
2 ex of solvent
Hot coffee, water
2 ex of solute
Salt, sugar
3 ways to speed up dissolving process
Stirring
Increasing temp
Increasing surface area
What’s solubility? What’s concentration?
S- max amount of solute that can be dissolved in a solvent at a given temp
C-% by volume of a solute in a solvent
Properties of diluted solution?
Small amount of solute in solvent
Properties of concentrated solutions?
High amount of solute in solvent
What are unsaturated solutions?
Able to dissolve more solute at given temp
What are saturated solutions?
Contains all solute it can at given temp
Supersaturated solutions?
Contains more solute than it can hold
What r acids?
Substances that produce hydrogen ions in solution
2 ex of acids?
Lemon juice, car battery
What r bases?
Substances that produce hydroxide
What r properties of acids?
Sour taste
Electrolytes
Corrosive
What r properties of bases?
Bitter taste
Often slippery ( in solutions)
Strong bases = corrosive
2 ex of bases?
Sea water?
Drain cleaner
Bleach?
Whats ph scale? What does it range from?
% of hydrogen ions in substance
0-14
What does ph measure?
Concentration of hydrogen ions
What is a neutral ph solution?
Blood
What are ph indicators?
Organic compounds that change colors in presence of acids or bases
How are salts formed?
When negative ions of an acid combine with positive ions of a base
Distinguish between strong acids and bases
A- fully ionize in water
B- fully disassociates
