Question 17 4 pts
A voltaic cell can be prepared from copper and tin. What is the
Eºcell for the cell that forms from the following half-reactions?
Cu2+(aq) + 2e
>
Cu(s)
E° = 0.34 v
Snº+(aq) + 2e
www.
> Sn2+(aq)
E° = 0.13 V

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

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∘

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.