Author Question: If the H+ of a water sample is 1 10-4 M, the OH- is A) 1 10-4 M. B) 1 10-14 M. C) 1 104 M. ... (Read 36 times)

2125004343 · **on:** Aug 27, 2018

If the H+ of a water sample is 1 10-4 M, the OH- is

A) 1 10-4 M.
B) 1 10-14 M.
C) 1 104 M.
D) 1 10-10 M.
E) none of the above

Question 2

Calculate the energy of the orange light emitted, per photon, by a neon sign with a frequency of 4.89 1014 Hz.

A) 3.09 10-19 J
B) 6.14 10-19 J
C) 3.24 10-19 J
D) 1.63 10-19 J
E) 5.11 10-19 J