3. Calculate the concentration of nicotinic acid (HNic), nicotinate (Nic-), and hydrogen ion (H ) in a solution of 0.28 F nicotinate. The Ka for nicotinic acid is 1.40 x 10-5. Also, calculate the pH of the solution.

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Which statement describes james chadwick’s discovery.

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.