16 Chapter I (a) 2.16 g dm-3 (b) 0.072 g dm-3 (c) 7.28 g dmb3 (d) 216 g dm-3 6. For the reaction, 2S0,(g) + 02(g) --+ 2SO3,,, what is the value of Av,? (a) +5 (b) +1 (4 0 (d) -1