Solutions, Acids, And Bases

Solutions, Acids, And Bases 9th Grade Test #2
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solvent
 
substance that dissolves solute
solute
 
substance the is dissolves in solution
Three indicators of solution concentration
 
percent by mass, parts per million, molarity
Mass percent concentration
 
solute mass/total mass * 100%
Parts per million
 
5/100 = x/1000000
Mole
 
amount of substance to contain 6 * 10 to the 23rd power particles
molar mass
 
volume of one mole; Atomic mass in grams
molarity
 
moles per liter
acid
 
more H+ than OH-
base
 
more OH- than H+
Neutralization Reaction produces (2)
 
Water and salt
strong acid
 
fully ionized when dissolved in water, conducts electricity well
weak acid
 
partially ionized, not as conductive
Example of strong acid
 
nitric acid HNO3
example of weak acid
 
acetic acid CH3COOH
example strong base
 
Potassium hydroxide KOH
example weak base
 
ammonia NH3
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