how much water

How much and how often should i water my plants if they are in 2 gallon pots from seed to harvest?

At least much as they need but no more than that....

For real dude, medium, temps, strain and so many other factors will make that value change on almost a daily basis. Try doing some research on proven and reliable watering techniques and methods and adapt them to your grow. There is no chart that is going to grow your weed for you.

As much as they need. Probably every couple of days. They'll drink more as they get bigger

Wait until your plants are nice and dry then water/feed until you get about 25% running out the bottom of your pot. After a while if your grow area is "dialed in" your watering/feed times should become like clockwork. You can check how dry your soil is with a finger, by lifting the pot and judging the weight, or get a moisture meter.

yeah i figured that their is no exact amount, just enough to keep the soil moist

i would recommend you to get moisture meter, you can get soil master for 9 bucks at lowes, it will help you to understand easy till you hone your skill, you wont need moisture meter

i still do use moisture meter if im not sure because im using soilless...its lightweight, big different from solid soils anyways happy growing , buddy

ok at an average temp of 82 degrees and 45-54% humidity I water every 3-5 days, thoroughly, by which I mean that at least a cup of water drains from the bottom, but I do not leave them sitting in the water, usually I will go 5 days water then 3 days and water with nutes (I use low strength nutes for soil),

If I plant on being gone for 5-7 days, then I fill up a 5 gallon bucket with water and submerge each pot in the water until it is thoroughly soaked, and I use 1-2" of hydroton across the top of the soil to keep the water from evaporating to quickly.

good rule of thumb i stole from someone on here, "Stick your finger in the soil about 1 inch down, if it feels moist dont water, if it feels bone dry water"

also you can get a moisture, soil ph, light meter combo for under 10 bucks on amazon the bond co. one is what I gots