Well there are alot of factors. Strain being the main one. You have strain, nutes, media, temp, humidity, co2 levels, veg time, grow method (lst, main-lining, topping, sog, or nothing) and lighting (bulb, hood, hps, mh, cmh, led, t5, cfl). If you are a pro you would hit about 0.5 grams per watt with hid. More so with led or par t5. Considering this is your first time. You will get a lot less. Aside from the learning curve of growing in general. The first batch of a new strain will always be the worst one. It takes a few batches to learn how a strain grows and what its perticular needs are. Also with strain type. Sativas yield the most. Indicas yield the least. Hybrids are in the middle. I do indicas myself. Im a kush head.... I averags about 1 oz a plant if vegg for 4 weeks. If I veg for 8 weeks I average about 3 to 4 oz per plant depending.
Anyway. No one can tell you specifically what your yield will be. What I said is the best honest answer you will get.
Good luck and happy growing