20 cm3 of 0.09 mol dm3 solution of tetraoxosuiphate (Vi) acid requires 30cm3 of sodium...

NECO 2001

20 cm³ of 0.09 mol dm³ solution of tetraoxosuiphate (Vi) acid requires 30cm³ of sodium hydroxide solution for complete neutralization. The molar concentration of sodium hydroxide is [H = 1; S = 32; 0 = 16; Na = 23]

A. 0.03 mol dm³
B. 0.12 mol dm³
C. 0.27 mol dm³
D. 0.45 mol dm³
E. 0.90 mol dm³

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Correct Answer: Option B

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