The concentration of the ions of the solution is 5.7 * 10^-4 M.
<h3>What is the ICE table?</h3>
The ICE table can be used to determine the equilibrium constant of the process; SrSO4(s) ⇔ Sr^2+(aq) + SO4^2-(aq). ICE stands for initial, concentration and equilibrium.
Thus;
SrSO4(s) ⇔ Sr^2+(aq) + SO4^2-(aq)
I 0 0
C +x +x
E x x
Now;
Ksp = x^2
x = √Ksp
x = √3.2 x 10-7
x = 5.7 * 10^-4 M
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Moles Ca(OH)2 = 12.9 /74.092 g/mol=0.174
<span>moles H3PO4 = 18.37/98.0 g/mol=0.187 </span>
<span>3 : 2 = x : 0.187 </span>
<span>x = moles Ca(OH)2 needed =0.281 </span>
<span>we have only 0.174 moles of calcium hydroxide so it is the limiting reactant </span>
<span>moles Ca3(PO4)2 = 0.174/3=0.0580 </span>
<span>mass = 0.0580 mol x 310.18 g/mol=18.0 g</span>
The solvent in a solution generally is the substance with the highest concentration.
So, in this case is should be the substance D which makes up 70%.
Answer: option A. substance D.
Electrical energy changes to heat energy
