Chemistry oceanography didgeridoo cant brrrrt Flashcards
what type of water is the most common type of water on earth?
Ocean water
what property of the surface ocean varies across the globe
the chemistry of the surface ocean varies across the globe
what does the chemistry of the water column vary with?
the chemistry of the water column varies with depth
how does the chemistry of the deep ocean vary across the globe
chemistry of the deep ocean varies across the globe in surface waters and at depth
why does sea water taste salty
because it contains lots of dissolved constituents
how do naturally appearing elements occur in the ocean
every naturally occuring element is found in the ocean dissolved in sea water
what are the most abundant ions in seawater
chloride and sodium are the most abundant ions in seawater
they make up over 90% of the mass of all dissolved ions in ocean
what are the 6 dissolved constituents that account for 99.8% of the dissolved salts in seawater
chloride,sodium,sulphate,magnesium,calcium,potassium
what 4 processes control the salinity of sea water
evaporation
precipitation
freezing
mixing between water masses
name for 4 reasons for why we need to know salinity of seawater
used for determining of density of seawater
affects freezing point of seawater
changes in salinity drive thermohaline circulation
temperature and salinity characteristics fingerprint the origin of water masses
what is conservative behaviour
constituent whose concentration in solution is unaffected by chemical reaction or biological activity
how do all major ions behave in sea water
they behave conservatively in sea water
what affects the concentration of major ions
concentrations only affected by evaporation,dilution or mixing
what is the role of iron in seawater
iron controls how many phytoplankton grow in surface seawater
are the concentrations of non-conservative ions related to salinity
the concentrations of non-conservative ions are not related to salinity
