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Sagot :
The molar concentration of [tex] {SO_{4}}^{2 - } [/tex] is 2.4
Firstly understanding the concentration [tex] {SO_{4}}^{2 - } [/tex], which will be 3. Hence, each molecule will release three sulphate ions.
Molar concentration = number of moles ÷ volume of solution in litres
Molar mass of aluminium sulphate = 342 g/mol
Number of moles = 55/342
Performing division
Number of moles = 0.16
Molar concentration = 0.16/2
Performing division
Molar concentration = 0.8
Molar concentration of sulphate ions = 0.8 × 3
Molar concentration of sulphate ions = 2.4
Thus, the molar concentration is 2.4.
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