As a chemist for an agricultural products company, you just developed a new herbicide,Herbigon, that you think can kill weeds effectively. A sparingly soluble salt, Herbigon is dissolved in 1M acetic acid for technical reasons having to do with its production. You know the solubility product Ksp of Herbigon is 8.60×10^?6. Although the formula of this new chemical is a trade secret, it can be revealed that the formula for Herbigon is X-acetate (XCH3COO where "X" represents the top-secret cation of the salt). Its this cation that kills weeds. Since its critical to have Herbigon dissolved (it won't kill weeds as a suspension), you work on adjusting the pH so Herbigon will be soluble at the concentration needed to kill weeds. What pH must the solution have to yield a solution in which the concentration of X+ is 6.00x10^-3M? The pKa of acetic acid is 4.76