류다은-월요일 8,9교시 화학 실험(1)

WORKED EXAMPLE 16.19
A solution of a chloride of formula MCl, (concentration 0.0170 mol dm 3) reacts with silver nitrate (AgNO,) solution to precipitate silver chloride (AgCl). It is found that 25.0 cm' of 0.0110 mol dm-3 silver nitrate solution reacts with 5.40 cm' of the chloride solution.
a) Calculate the amount in mol of silver nitrate.
b) Calculate the amount in mol of the chloride (MCI.).•
c) Calculate the formula of the chloride (MCl.).

a) 질산 은(AgNO₃)의 몰 수 계산
몰 수=농도×부피=0.000275 mol
b) 염화물(MClₓ)의 몰 수 계산
몰 수=0.0170×5.40×10−3승=0.0000918mol
c)화학식이 MClx+xAgNO3 →xAgCl+ M(NO3)x이므로 몰비율을 계산하면 x = 3이다. 따라서 염화물의 화학식은 MCl₃이다.