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SEA SALT
The ocean contains nearly all known elements which are dissolved within it. While the total
amount of dissolved salts may vary from place to place, the proportions of the major salt con-
stituents remain constant throughout all waters of the open sea.
Constituent
Chloride
Sodium
Sulfate
1
The following six major constituents comprise more than 99% of sea salt: chloride (CI), sodi-
um (Na), sulfate (SO4), magnesium (Mg), calcium (Ca), and potassium (K). The other elements
present in sea salt add up to less than 1 percent (%).
S
Abundance (%)
55.1
30.4
7.7
3.8
1.2
1.1
?
Magnesium
Calcium
Potassium
Other Elements
1. Determine the abundance (%) of "Other Elements."
2. Make a circle graph in the space below illustrating the abundance (%) of the constituents
that comprise sea salt.
