A buffer that contains 1.10 M base, B, and 0.700 M of its conjugate acid, BH , has a pH of 9.600. What is the pH after 0.0045 mol of HCl is added to 0.550 L of this solution

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

What is the solubility-product constant of barium sulfate, baso4, if a saturated solution is 1.03 ´ 10-5 m?