cameroon gce A level June 2018 chemistry 2
SECTION A: PHYSICAL AND GENERAL CHEMISTRY
1. This question is on the mole concept, bonding, equilibria and energetics,
(a) Define “mole” of a substance.
(1 mark)
(b) 25 cm3 of a 0.005 moldin‘3 solution of hydrated sodium thiosulphate(Na2 S2O3.5H2O) was mixed with 25 cnT of 0.05 mol dm“3 iodine solution and allowed to react.
(i) Calculate the number of mole 25 cm3 of a 0.005 moldin’3 solution of hydrated sodium thiosulphate(Na2 S2O3.5H2O) was mixed with 25 cnT of 0.05 mol dm”3 iodine solution and allowed to react.
Tatapong
February 1, 2020
How can we download questions here please help
Elvis
June 29, 2021
Please how can I download past questions in PDF