Question

show whether seawater of the composition given in the table satisfies electroneurality.( in order to show electro neutrality, the sum of the moralities of the cations multipled of the anions multipied by the charge of the anions)

Answer 1

Composition of sea water
Component Concentration (mol / kg)
H2O
53,6
Cl-
0,546
Na
+
0,469
Mg2
+
0,0528
SO42-
0,0283
Ca2
+
0,0103
K
+
0,0102
C
0,00206
Br-
0,000844
B
0,000416
Sr2 +
0,000091
F-
0,000068
Au3
+
0,00000000002
The sum of anions is 0.575212
The sum of kations is 0.54239100002
So the sum of anions is greater then the sum of kations.