When blood is donated, sodium oxalate solution is used to precipitate Ca^+, which triggers clotting. A 110.0-mL sample of blood contains 9.70x10^-5 g Ca^2+/mL. A technologist treats the sample with 100.0 mL of 0.1550 m Na2C2O4. Calculate [Ca^2+] after the treatment.
(CaC2O4 . H2O Ksp = 2.30x10^-9)
Enter your answer in scientific notation.