14 kg. According to the query of Guangming. com. Com, according to the copy paper100g, fully open is100g,16g is 50g, which is equal to 3.125g, that is to say, one page is 3.125g, and all books are printed on both sides. 3.125g times 175 pages equals 546.875g, which is one catty, so copying a 350-page book is so heavy, and 546.875 times 13 equals 7109.375g, and the weight is1.