Convert the following from mg/L as CaCO₃ to mg/L as the ion or compound:
a. 100.00 mg/L SO₄²⁻
b. 30.00 mg/L HCO₂³⁻
c. 150.00 mg/L Ca²⁺
d. 10.00 mg/L H₂CO₃
e. 150.00 mg/L Na⁺