Calculate the [H⁺], [HS⁻], [S²⁻], and pH in a 0.10 M H₂S solution. The dissociation constants for H₂S and HS⁻ are 1.1 × 10⁻⁷ and 1.0 × 10⁻¹⁴, respectively.
a) [H⁺] = 1.1 × 10⁻⁸ M, [HS⁻] = 1.0 × 10⁻⁷ M, [S²⁻] = 0.10 M, pH = 7.22
b) [H⁺] = 1.1 × 10⁻⁸ M, [HS⁻] = 1.0 × 10⁻⁷ M, [S²⁻] = 0.01 M, pH = 7.52
c) [H⁺] = 1.0 × 10⁻⁷ M, [HS⁻] = 1.1 × 10⁻⁸ M, [S²⁻] = 0.10 M, pH = 7.52
d) [H⁺] = 1.0 × 10⁻⁷ M, [HS⁻] = 1.1 × 10⁻⁸ M, [S²⁻] = 0.01 M, pH = 7.22