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# Unit conversions watch

1. (Original post by keromedic)
It's just applied maths. If you tried, I'm sure you'd fine it easy.
If I tried - sure but it is just so dull
2. (Original post by Phichi)
The NaCl is initially 1 M (1 moldm^-3 -- concentration)

If you dilute something 10 fold, you're making the volume 10x bigger, hence making the concentration 10 times smaller. So one 10-fold dilution leads to:

If you were to 10 fold it again, you'd get a tenth of that:

So on and so forth
so will the answer be from start to end

10^-1, 10^-2 , 10^-3 , 10^-4 ?

i thought u start from 1 ?
3. (Original post by TenOfThem)
Is L litres
but why is it wrong to

say

14 x 10^2 ?
4. (Original post by Lufthansa)
but why is it wrong to

say

14 x 10^2 ?
Standard Index Form
5. (Original post by TenOfThem)
Standard Index Form
oh i see so with standard index form there always has to be a decimal place
6. (Original post by Lufthansa)
oh i see so with standard index form there always has to be a decimal place
there always has to be a number less than 10 (and at least 1)

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Updated: November 17, 2013
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