nakuru district secondary schools trial examination - KCSE Online

.....................................................................................................................................................................................................................................................................................................(c) What property of ion(III) chloride makes it possible to be collected as shown in the diagram(1mark)........................................................................................................................................................................................................................................................................................................19 The scheme below was used to prepare a cleansing agent. Study it and answer the questionsthat follow.NaOH(aq)FatBoilStep ISolution of cleansing agent and an alcoholStep IISolid cleansing agent(a) What name is given to the type of cleansing agent prepared by the method shown in the scheme(1mark).....................................................................................................................................(b)(i) Name one chemical substances added in step II(1mark)...................................................................................................................................(ii) What is the purpose of adding the chemical substance named in b(i) above(1mark)...........................................................................................................................20 (a) State Graham’s law of diffusion (1mark)............................................................................................................................................................................................................................................................................................................(b) Nitrogen diffuses through a porous plug at a rate of 10cm -3 min -1 and a gas A diffuses at therate of 5.9cm -3 min -1 . Calculate the molar mass of A. (N=14) (2marks)………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………Visit:11www.kcse-online.info for thousands of free Past papers