The cell has a potential of 0.2106 v when the solution in the right-hand compartment is a buffer of ph 4.006. calculate the ph and the hydrogen ion activity of each unknown, if when the buffer is replaced with unknowns, the following potentials are obtained from?

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)

Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration

The compound formed from 2 atoms of hydrogen and one atom of oxygen is