i used between 1.5-2grams of weed in around 30ml of vodka it has been heating in a nearly airtight glass container for around 9 hours is that long enough to activate thc? the alcohol has barley evaporated from it the level is only slighly lower then when i started so i assume its good and should be ready to go? how much of a dose would be best also 10ml or so?

If your vodka turned dark green or even brown, the chances are its OK.
And for the amount... i would suggest you to drink the same amount you usually smoke. You said you used 1.5-2g of weed in 30ml of vodka, thus each 10ml of vodka contain 0.5-0.66g of weed in it.
So, if you usually smoke, lets say, 0.5g, then drink 10ml. If you smoke 1g, drink 20ml, etc. It must be enough. Just remember to drink it with an empty stomach (as it usually doesnt work on a full stomach). And remember also that the effects take some time to start (between 30min and 1-2 hours), so dont assume it didnt work before waiting enough time. And good luck! If it were rightly done, you surely will know it!


EDIT: 2,420th post!

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ok then cool man thanks for the reply and after i strained it out its actualy more about 10ml of alcohol hahaha.....oh well be a potent drink ima down half of it or it all see how it hits me lol. the color of it is goldenbrown with a light brown colored center (how it looks through the jar) so should be pretty potent