Unit 6: Solutions and Solubility Flashcards
Solution
A type of homologous mixture that has a solute dissolved in a solvent
Aqueous solution
A solution with water as the solvent (solvents are not always water)
Characteristics of all aqueous solutions
-only one substance is visible (homogenous)
-transparent (not cloudy)
-can take the colour of a solute (like koolaid)
-created and reversible through physical change
Electrolytes
Form IONIC COMPOUNDS needed to survive, without it no ATP or nerve signals
(eg. gatorade and powerade)
Molar concentration
C=n/V
Mixing questions
(n1+v1)/(n2+v2)
Dilution
When we dilute a solution we change C and V but n stays the same
C1V1= C2V2
Stock
Saturated solution
Climate change and oceans
Oceans absorb 45% of CO2 that humans produce. Oceans absorb CO2 like a sink, eventually as temp gets warmer, ocean will become a carbon source and release it into the atmosphere . GHGS are soluble in water and as a result are being released into atmosphere too
Acid characteristics
-taste sour
-turns blue limus paper red
-pH less than 7
-arrhenius theory: a substance that produces H+ when it dissociates
Bases characterisitcs
-tastes bitter
-turns red litmus paper blue
-pH higher than 7
-Arrhenuis theory: a substance that produces OH- when it dissociates
Strong and weak acids
Depend on the % dissociation of the solute (not the concentration)
Strong acid
Hydrochloric acid (HCl)
when molecules go in water they dissociate into h and ch ions 100%
Weak acid
Acetic acid (Ch3COOH)
only approx 12% of acids dissociate
Strong base
Sodium Hydroxide (NaOH)]
100% dissociates
