Bottle feeding

My baby is only two weeks old and she likes to eat. She can go through three to four ounces in one sitting. She's going through 5 - 8 bottles a day is this normal? She can also sleep from 4 to 5 hours is this normal as well I just want to make sure she's eating enough enough. Its only 6 o'clock here and she's went through 9 diapers