Correct Answer: Option B

Explanation

First write a dissociation equation:   H\(_2\)SO\(_4\)  ⇌  2H\(^+\)  +  SO\(_4\)\(^{2-}\)

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

But we need to get the number of moles first by applying  n = \(\frac{m}{M}\)

                                                                                            n = \(\frac{4.9}{98}\) (Molar mass of H\(_2\)SO\(_4\) = 98g/mol)

                                                                                            n = 0.05 mole

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

Number of hydrogen ions = ( n x L ) X 2 → We multiplied by 2 because 2H\(^+\) were formed.

                                         = 0.05 x 2 x 6.02 x 10\(^{23}\)

                                         = 6.02 x 10\(^{22}\) ions

• what is the fluid in the eye calles? Answer this

  1 Answers   ·   Biological Science   ·   11 hours ago
• which school is the richest school in Nigeria? Answer this

  1 Answers   ·   1 day ago
• how does post utme looks like and what are the subjects required for a medical student? Answer this

  1 Answers   ·   1 day ago