Question

Can someone help with exponents?

Answer 1

Sure

Answer 2

So I was doing a problem that involves [(6.626x10^-34 J s) (3.00x10^8 m/s)]/(8.49x10^-21 J)

Answer 3

And I got the answer which is 2.34

Answer 4

but I can't get the exponents for this problem right.

Answer 5

I originally got 2.34x10^-5 but it said that the exponents were wrong

Answer 6

Any help?

Answer 7

let me try it for myself.

Answer 8

Thank you!

Answer 9

If you need the actual problem I can give you that.

Answer 10

Sure

Answer 11

What is the wavelength (in nm) of radiation that has energy content of 5.11 x 10^3 kJ/mol?

Answer 12

For the energy part 6.626x10^-34 why didnt you multiply it by 6.00 x 10^14?

Answer 13

It's how it was shown on the site I was on explaining it. I got the right answer from it.

Answer 14

Using your method, I got a different answer

Answer 15

How did you do it? Maybe I just got lucky.

Answer 16

Show me your math

Answer 17

I took 5.11 x 10^3/ 6.022 x10^23 mol^-1
Then x = [(6.626 x10 ^-34 J s)(3.00x10^8 m/s)] / (8.49 x10^-21 J)

Answer 18

That gave me 2.34 x 10^-5

Answer 19

It only counted the 10^-5 wrong. The 2.34 was counted right.

Answer 20

I got 2.34 x 10^21

Answer 21

How did you get the 21?

Answer 22

that's the part where I messed up

Answer 23

Was it right?

Answer 24

I haven't checked it yet. I only have one shot left so I was wanting to understand it first.

Answer 25

And try to connect the dots.

Answer 26

Oh ok yeah, if you only have one chance then you should double check

Answer 27

I used the formula you gave me, check your math again see if anything changes

Answer 28

I got 2.34 x 10^-47 this time

Answer 29

Wow, three answers. Let me check again.

Answer 30

Yes i got that too

Answer 31

2.34 x 10-47

Answer 32

Thank you. I really don't get what I'm doing wrong. I keep getting the right answer but not the exponent part.

Answer 33

I got the same thing now

Answer 34

It's most likely right then. Thank you for the help.

Answer 35

Alright, tell me how it goes.

Answer 36

I think it counted it right. Thank you so much for the help

Answer 37

No problem!