Answer to Question #46630 in Inorganic Chemistry for viktoriya

Question

Show whether seawater of the composition given in the below satisfies electroneutrality.

Cl(- ) conc.:18.980‰ ; K (+) conc : 0.380 ‰ ; HCO3 (-) conc: 0.142‰ ; Br(-) conc :0.065 ‰ ;
Na( + )conc. 10.560 ‰ ; SO4 (2-) conc. : 2.560 ‰ ; Mg (2+) conc:1.272 ‰ ; Ca(2+) conc : 0.400 ‰ ; B(OH)4( -) conc.: 4.6 ‰ ; Sr ( +) conc:13ppm ; F(-) conc : 1.4 ppm ; Rb(+) conc :0.2 ppm ; Al(+3) conc: 0.17 ppm ; Li(+) conc: 0.1 ppm ; Ba( +2) conc: 0.05 ppm ; I (-) conc: 0.05 ppm

Answer 1

If the sum of all charges is equal to zero than compound or mixture ofcompounds is electroneutral.
∑q = (-1)*18.98*10^-3+ (+1)*0.38*10^-3 + (-1)*0.142*10^-3 + (-1)*0.065*10^-3+ (+1)*10.56*10^-3 + (-2)*2.56*10^-3 + (+2)*1.272*10^-3+(+2)*0.4*10^-3 +(-1)*4.6*10^-3 +(+1)*13*10^-6 +(-1)*1.4*10^-6 + (+1)*0.2*10^-6 + (+3)*0.17*10^-6+ (+1)*0.1*10^-6 +(+2)*0.05*10^-6 + (-1)*0.05*10^-6= -0.01461 ≠ 0
The data which is represented above do not satisfythe electroneutrality of seawater.