Question

b, When blood is donated, sodium oxalate solution is used to precipitate Ca²⁺, which triggers clotting. A 114.0−mL sample of blood contains 9.70 × 10⁻⁵ g Ca²⁺/mL. A technologist treats the sample with 100.0 mL of 0.1550 M Na₂C₂O₄. Calculate [Ca²⁺] after the treatment.
(CaC₂O₄ · H₂O K_sp = 2.30 ×10⁻⁹)

Enter your answer in scientific notation.

Answer 1