This is simple one, in: 6.626+10^-34 / 9.11x10^-3(1.24x10^7) , I keep getting -58 as my exponent, yey the book says -11, how did they get -11 as the exponent? In general how do you solve for the exponent

Question

This is simple one, in: 6.626+10^-34 /  9.11x10^-3(1.24x10^7)    , I keep getting -58 as my exponent, yey the book says -11, how did they get -11 as the exponent? In general how do you solve for the exponent

anonymous · Answer

And yes this is chemistry, its de Broglie's equation.

kainui · Answer

So it looks like you have:
$$v=h/m _{e} \lambda$$

It looks like you might be using your scientific notation incorrectly, 6.626+10^-34 should really be typed into your calculator as 6.626*10^-34.

When I did the problem I got 5.87*10^-25 m/s

vincent-lyon.fr · Answer

mass of the electron is:$$9.11\times 10^{-31}\;kg$$There is a problem with you opening bracket.

jfraser · Answer

$$\nu = \frac{6.626*10^{-34}J*s}{(9.11*10^{-31}kg)(1.24*10^{7}m)}$$
I get 5.85*10^(-11) Hz