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Cake day: July 3rd, 2023

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  • The figure you’ve linked plots concentration by weight (wt.%), while the alcohol content of drinks is usually given in volume percent (v/v). Ethanol is less dense than water, so a 30% concentration by weight is a higher concentration by volume.

    Imagine a 100g solution of 30wt.% alcohol. That means that 30g are ethanol and 70g are water. the 70g of water translate to 70ml volume (density 1g/ml) and the 30g of ethanol translate to 30/0.789 = 38.02ml. So in total, you would have 108.02ml of liquid and the concentration of ethanol by volume would be 38.02/108.02 = 35.2%.

    Why it gets wacky at the end: Ethanol freezes at -114°C, water freezes at 0°C, but at specific concentrations, the eutectic composition, the solution freezes at a lower point than either of its constituents. The eutectic point is the lowest possible freezing point of a solution. The formula I gave is not applicable to eutectic solutions and is an approximation based on perfect solutions (which in reality don’t really exist).





  • tl;dr Around -21°C (-9°F). Realistically probably a tad lower than that.

    Formula for freezing point depression is:

    ΔTf = i * Kf * m

    ΔTf = freezing point depression in absolute degrees (C or K)

    i = van 't Hoff factor, the number of particles the solutes splits into, ethanol does not split, so 1

    Kf = freezing point suppression constant, for water 1.86°C * kg / mol

    m = molality of the solution (aka how much you add), looked it up and it’s 11.42 mol for 40% ethanol/water mixture

    1 * 1.86 * 11.42 = 21.2412°C
    

    In reality, Jägermeister is not a pure water/ethanol mixture and all that other stuff in there drops the freezing point by a bit as well. Ethanol is the biggest contributor tho. So maybe add 1° or 2° to this.


    Is Jägermeister really that green in the US?


  • Here is a scenario that actually happened, you’ll be the judge:

    Person A is someone who, to their own admission, wanted to be friends. I know them over persons B and C, long-time friends of mine, A is very close to C. I invite A to a BBQ at my place that B and C are attending as well, they leave me on read, but tell C they’ll come, so when speaking to C shortly before the BBQ, I get told that A is coming as well. A then asks, last minute, if they can come too even tho I already know they planned to come. I brush it off as bad communication.

    Next month, pretty much the same situation. I invite A, this time telling them that they should drop a yes/no so I can plan for food. Get left on read again. At the day before the BBQ, I ask again if they’ll come, they say no. Next day, A asks if they could come despite saying no, okay well whatever. Anyway B and C arrive first and they know that A is coming too. They were told a week ago, I had no idea. Got me pissed, so I text A and ask what the fuck their deal is and now suddenly I am the clingy bad guy. B remains neutral, C takes the side of A telling me, it was my fault that it didn’t work out and that A was simply trying to surprise me.

    Anyway, I am not friends with C anymore either. Fuck that shit.



  • If getting messaged once a week or so to ask if you wanna hang is “smothering” and “risk pushing” you away, then maybe, just maybe, the problem is not the dude messaging.

    It’s not a tightrope walk, a friendship is built on mutual respect. Feeling left out and lonely because there is no reciprocation whatsoever is normal. Calling this OP’s fault is extremely toxic, holy shit. If it’s a tightrope walk, you didn’t wanna be friends from the very beginning and are bad at communicating your intent.