How many moles are there in 2.50 x 1029 molecules of CCI4? a) 4.15 x 10^-5
b) 4.15 x 10^5
c)4.15 x 10^23
d) 6.02 x 10^23

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.