Determine the concentration of H+ in each solution at 25∘C

1. A solution with pH = 2.0

[H+] = M

2. A solution with pH = 4.0

[H+] = M

3. A solution with pOH = 10.0

[H+] = M

How many moles of gas are present if p=11 atm, v=12l, t=185k?

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.

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘