Alright I am in Chemistry preparing for a test and having some problems with my calculator.
Okay so here is the problem:
E=hc/lamba=(6.626 x 10^ -34 J-S) x (2.998x10^8 m / 1) x ( 1 / .154 nm) x ( 1nm / 1 x 10^ -9 m) = 1.29x10^ -15 J
I am coming out with 1.29 x 10^ -16 J
I have put it in there 5 times and done different problems and am always 1 power short. on every one of them Is it screwed up? I cant imagine 20 problems being wrong and me putting it in wrong that many times.
Btw I checked the problem I just typed in twice. It is correct.
2007-11-20 12:03:08 · 1 answers · asked by Reviction 1 in Science & Mathematics ➔ Mathematics
I have no clue. I must be screwing up some where. Guess I am having a brain fart if I can complete it that many times and still get the wrong answer. Thanks bud
2007-11-20 14:45:17 · update #1
I ran your numbers twice.
Came up with 1.29E-15J
2007-11-20 14:42:16 · answer #1 · answered by David M 4 · 0⤊ 0⤋