2.5 Flashcards
Cohesion
sticking together particles of the same substance
adhesion
attaching to a surface
solvent
dissolves solute
specific heat
the amount of heat needed to raise the temp one degree of a one gram item
heat of vaporization
amount of heat needed to turn 1g into vapor
concentration
number of particles in a given solution
pH
how acidic or basic something is
pOH
- log x 10 to the power of something
hydroxide ion
H3O+
hydronium ion
OH-
acid
anything lower than 7
base
anything higher than 7
5 property’s of water
cohesion solvent specific heat heat vaporization polar
Examples of why each property is important to living things
allows water to get where it needs to get to for nutrients
Explain how water’s polarity or ability to make hydrogen bonds gives it each property
water molecules attract forming hydrogen bonds
Calculate pH, [H3O+], [OH-], pOH when given one of the four variables
ph=1-7,7-14
H3O+ and OH- and acidic and basic pOH is -log 10x something
Decide whether a solution is an acid, base, or neutral when given either pH, [H3O+], [OH-], or pOH
H3O+ is acid OH- is basic pOH is basic pH is acidic
Compare the concentrations of [H3O+] and [OH-] of solutions with two different pHs.
in water they are more equal in acidic it would be more acidic and in basic it would be more basic
