This online chemistry lab won't accept my answer, WHY?

[NoobSchooled]

This online chemistry lab won't accept my answer, WHY?

Homework Statement

Ok, I'm doing this lab, and it won't accept my answers. I can garuntee you that they're correct. Maybe I'm typing them in wrong? I've missed soo many attempts, I look at what the system says, but it says the answer is extremely close or there is a labels problem.

Here's a picture of the problems that it won't accept:
http://postimage.org/image/pcm8jngk/"

Everytime I click submit, it says 6 attempts left. I asked a few class mates and they said my answer is right.

What seems to be the problem here?

 

[tiny-tim]

Welcome to PF!

Hi NoobSchooled! Welcome to PF!

Looks right, must be the typing …

why have you put those spaces in 7.9e - 6m³ ?

(btw, this is really a maths forum question)

 

[lolzwhut?]

Hmmm...your work seems right to me. maybe you typed it wrong?

 

[Borek]

There is no manual, that will tell you how to enter numbers and answers? These systems quite often understand only answers that are entered exactly the way they want it; no flexibility at all. Perhaps no space, perhaps it expects capital E or something like that. Or perhaps you are using unsupported browser.

 

[NascentOxygen]

What's the URL of the online lab? I'll take a look at it.

 

[Borek]

My guess is that you won't take a look without registering and paying - and that's assuming it is possible to register in person, not through the course.