Calculating Solubility from Ksp
The Ksp for CaF2 is 3.9 x 10-11 at 25 °C. Assuming equilibrium is established between solid and dissolved CaF2, and that there are no other important equilibria affecting its solubility, calculate the solubility of CaF2 in grams per liter.
The Ksp for LaF3 is 2 x 10-19. What is the solubility of LaF3 in water in moles per liter?
Chem 120 Chapter 4 Electrons always start at the lowest energy level and move up. • • Hund’s Rule: sets of orbitals have equal electrons • Always add electrons one at a time when filling orbitals. • Maximize the spin THEN double them up. QUESTION: What is the condensed electron configuration for oxygen 2 2 4 O=1s 2s 2p • When you are at a noble gas, you are at a completely filled electron shell. • Aufbau Principle: electrons build up from the lowest to the highest • Noble gas notation: [Ne] 2s 2 FAMILY (GROUP) PERIOD • Exceptions to electron configuration rule: Cr, Mo, Pd, Cu, Ag, Au, Pt These are all one electron from either a fully filled or half filled electron shell, so they lose an e
