First, stop giving her a bottle, she is using that for a crutch and a soother, not to eat a meal.
At 10 mos she should be able to go all night without eating.
My children did not sleep through the night until 10 mos but after that I did not give them anything to eat, if they woke I would peek in on them, try to figure out what was going on and put them back in their crib awake and let them get themselves back to sleep.
Kids change sleep patterns a lot, and growth spurts and teethin are the number one culprits in waking in the middle of the night, if she is teething (which very possibly is the problem) then she will reprogram if you stop feeding her as a comfort or to go back to sleep. Also putting rice cereal in her bottle adds to the chance of decay on her baby teeth not to mention will not help. Make sure she has a hearty meal before bed and that is all she needs.
My son was almost 9 lbs at birth, so I know from experience, the bigger they are basically the more they can hold all night. He slept all night at 9 mos. If she is teething the bottle may be providing some relief from the pain which is why she is taking it. She doesn't need it though so there is a difference.
There is not a set age kids sleep through the night, some very early, mine waited a while but do not use a bottle to get her back to sleep, that right now is setting yourself up.
Try giving her tylenol, teething tablets or motrin (which lasts the longest) to help her before bed. Let her fuss, your son is probably so used to it and can sleep through the night by now fine. My kids share a room and my daughter slept right through my son fussing.