3mg to 6mg

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dobroeutro

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.957 ML I believe, if I used this calculator right (haven't used it in a while so I could be wrong). That appears to be correct running the math in my head as well: If you add 1ml of 100 mg/ml of nic to 30ml of juice you should be increasing it 3.33 mg/ml.


Looks right to me... :D
 

bombastinator

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.957 ML I believe, if I used this calculator right (haven't used it in a while so I could be wrong). That appears to be correct running the math in my head as well: If you add 1ml of 100 mg/ml of nic to 30ml of juice you should be increasing it 3.33 mg/ml.

Which calculator is that?
 
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zoiDman

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Hi.
I have some 3mg liquids and I want to transform them into 6mg for my MTL setups. I already have the nicotine (100mg/ml).
So, how much do I need to add to my 3mg liquid to get a target of 6mg?
We´re talking about 30ml bottles.
Thanks in advance for your help!

If I want to make 30ml of 6mg/ml using 3mg/ml and 100mg/ml, Two things need to happen.

One, The Total amount of Nicotine needs to be 180mg. (ie: 30ml x 6mg/ml = 180mg of Nicotine)
Two, the Total amount of Milliliters needs to be 30ml. (Duh!... LOL)

So let's call the amount of 3mg/ml to use "X". And the amount of 100mg/ml to use "Y".

So we have...

X(3mg/ml) + Y(100mg/ml) = 180mg's of Nicotine

and,

X + Y = 30ml

This is a System of Two Linear Equations. And Both have to be True to end up with have 30ml of 6mg/ml. But we have 2 Unknowns. So let's see if we Eliminate One of the Unknowns using (Gulp!) Algebra.

Let's take X + Y = 30ml

Turn the Wrench and you get X = 30 - Y

Now let's plug X = 30 - Y into X(3) + Y(100) = 180

=> (30 - Y)(3) + Y(100) = 180
=> 90 - 3Y + 100Y = 180
=> 97Y = 90
=> Y = 90/97 or about .9278

So it sounds like we need .9278 ml of 100mg/ml.

Cool. So let's plug that back into our X + Y = 30 formula now that we know what Y is.

=> X + .9278 = 30
=> X = 30 -.9278
=> X = 29.0722

OK! So it sound like we need 29.0722 ml of 3mg/ml and .9278 ml of 100mg/ml

Now if this is Correct, then X and Y should work in our X(3mg/ml) + Y(100mg/ml) = 180mg's of Nicotine formula.

So...

29.0722(3) + .9278(100) = 179.9966

So why is this like a Hair's Breadth Off? Because the .9278 value had a Miniscule Amount of Round-Off Error on it. Causing a Miniscule Amount of Error on the 180 value.

If you want it to be Numerically Correct, then the Value of Y should be left in its Fractional Form of 90/97.

---

So Why Does it All Work?

Because if I Only consider 1 Equation like X + Y = 30, there is an Infinite amount of Solutions for Y for any "Real" Value of X.

But when I Conditionally Tie X + Y = 30 and X(3) + Y(100) = 180 together, then I get something that says X + Y = 30 If and Only If X(3) + Y(100) = 180. In this case, giving me a Unique Solution.

---

Real World DIY verses the Mathematical Realm.

Just use 29 ml of 3mg/ml and 1 ml of 100mg/ml. It won't be Numerically Correct. But you will Never be able to Taste the Difference.

179.9966mg of Nicotine in 30ml of Volume comes out to 5.9999mg/ml.
 
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zoiDman

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You are the best because you actually took the time to help others in such efficient way =)

Thanks Ansor71.

When it comes to a DIY Math problems, I think it is Good to show what the Code of a DIY Calculator is doing behind the scenes. At least once and awhile.

Not saying that Everyone should Chuck their Calculators and do Everything by hand. Of course not. But there will be Times when the Numbers a Calculator gives you just Don't Seem Right.

And having a Basic Understanding of what is going on can be a Big Help in Figuring Out what is wrong.
 

IDJoel

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That specific part of the program is under Tools > Simple Calculators > 'Adjust nicotine level in juice...'.
Hey Foz,
When using J.C. for OP's solution; I would suggest using Tools>Simple Calculators>Determine volume needed of two liquids to obtain a known volume and nicotine level... This keeps the volume to 30mL and doesn't risk overfilling the bottle. ;)
upload_2017-12-11_17-51-31.png
 
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