More mole concept ques!!

[Dean713]

plz help again!1) s02 qp 3 #5 (c) (i) to (iii)
http://www.xtremepapers.net/CIE/Cambrid ... 2_qp_3.pdf

2) w08 qp3 # 7 (a) (i)
http://www.xtremepapers.net/CIE/Cambrid ... _qp_03.pdf

3) w07 qp 3 #7 (b) (iii)
http://www.xtremepapers.net/CIE/Cambrid ... 7_qp_3.pdf

4) w01 qp3 #2 (c)
http://www.xtremepapers.net/CIE/Cambrid ... 1_qp_3.pdf