2017 Free NECO GCE Chemistry Practical Alternative to  Often Set Questions And Answers (Practicable Topics)


Tags: 2017/2018 neco Gce topics Nov/Dec real Chemistry Practical often set questions Obj/Essay Questions/Answers Chemistry Practical /Essay/Theory Questions / Answers / expo / runs. Theory 2017/2018 neco Gce Chemistry Practical Obj//Essay Theory questions / answers 2017.


*NECO GCE CHEMSITRY PRACTICAL*

1ai) Methyl Orange
Reason:- Titration of strong acid against base

1aii) Yellow

1aiii)Hydrochloricacid
1aiv)2HCL(aq)+ x2Co3 -> 2 x CLaq + H20(aq) + CO2(g)

1b) Molar mass of HcL = 1+35.5
=36.5gmol^-1
Con of A is moldm^-3 =
Con of A of gdm^3/molar mass in gdm^3
=7.30gdm^-3/36.5gmol^-1
=0.200moldm^-3

=======================

1b(iii)

Conc. of B in gdm-3/Conc. of B in moldm-3
=10.6gdm-3/0.148 gdm-3



=101.15g

=101gmol-1
========================

3b)

- Burrette

- Retort stand

- Solution/Acid

- Conical Flask



- white tile
3b
i=burette
Ii=boss and clamp
Iii=Acid
Iv=conical flask
V=white title







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