The Ksp of copper sulfide (Cus) is 8. 0 x 10-37. What is the solubility concentration of Cu2+] in a saturated solution at 25°C?



A. 1. 3 x 10-18M


B. 8. 9 x 10-19


C. 6. 3 x 10-19


D. 6. 4 x 10-73M