Medium

[Co³⁺] (M) in synthetic sample

Determined [Co³⁺] (M)

$\overline{x}$

s

$\overline{x}\pm ts/\sqrt{N}$

1.0 M NH₃/NH₄Cl buffer (pH = 9.8)

1 × 10⁻⁵

1.01 × 10⁻⁵

1.02 × 10⁻⁵

1.02 × 10⁻⁵

1.01 × 10⁻⁵

1.02 × 10⁻⁵

2.08 × 10⁻⁷

(1.02 ± 0.03) × 10⁻⁵