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Science

Effete Snob

(8,387 posts)

12. Yes, you did say that....

Reply to mitch96 (Reply #11)

Tue Jul 5, 2022, 11:12 AM

Jul 2022

"I was thinking of just filling a graduated glass jar with the water extraction to 80% full and just top it off to to 100% with the ETOH. 80% water+20% ETOH=100%"

If you are "topping off" with 20% of your ethanol solution to get "20% ethanol", you are inherently assuming that your "ethanol" is 100% ethanol, which it isn't.

What you are really doing (and we'll ignore the miscibility of water and alcohol for the moment) is:

80% water + 20% (75% etoh + 25% water)

You don't mix 80% water and 20% of a 75% ethanol solution and come up with 20% ethanol concentration.

In other words, that "20% ethanol" is only 15% ethanol (75 percent of the 20).

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I have a question that I can't find the answer on the google machine about percentages.. [View all] mitch96 Jul 2022 OP

Don't forget to add the eye of newt and the dragon's blood PJMcK Jul 2022 #1

Ok into the weeds here.. Lions mane and Oyster mushrooms have the largest concentration mitch96 Jul 2022 #9

This message was self-deleted by its author Hugh_Lebowski Jul 2022 #2

20/100 is 20% sl8 Jul 2022 #4

It also depends on the actual proof of the alcohol that you are using. Chainfire Jul 2022 #3

"100 proof liquor cut with and equal amount of water," mitch96 Jul 2022 #10

There's chemistry involved too so your suggestion won't work unblock Jul 2022 #5

I really wouldn't worry too much about accuracy for this application. NNadir Jul 2022 #6

Well, supposedly 1 liter of water and 1 liter of alcohol mix to form 1.8 liters of solution ... eppur_se_muova Jul 2022 #7

Where are you getting 100% ethanol? Effete Snob Jul 2022 #8

I did not say 100% etoh. Actually I'm using 75% etoh everclear found in the liquor store. nt mitch96 Jul 2022 #11

Yes, you did say that.... Effete Snob Jul 2022 #12

I see you want to argue. I'm not playing that game. have a great day, good bye.. nt mitch96 Jul 2022 #13

Ummm.... Effete Snob Jul 2022 #14