The number of hydrogen ions in 1.0dm\(^3\) of a 0.25 mole tetraoxosulphate(Vl) acid solution is [Avogadro…

Explanation

Given : 

Number of moles = 0.25 mole, Avogadro number = 6.02 x 10\(^{23}\)  Number of ions = ?

Recall that  Number of moles = \(\frac{Number of ions}{Avogadro number}\)

                     0.25 = \(\frac{Number of ions}{6.02 x 10\(^{23}\)}\)

                    Number of ions = 0.25 x  6.02 x 10\(^{23}\)

                                             =1.50 x 10\(^{23}\)