Amount of iron = tonnes
(Total 5 marks)
Q7.
A student carried out a titration to find the concentration of a solution of sulphuric acid.
25.0 cm3 of the sulphuric acid solution was neutralised exactly by 34.0 cm of a potassium
hydroxide solution of concentration 2.0 mol/dm3. The equation for the reaction is:
2KOH(aq) + H2SO4(aq) K2SO4(aq) + 2H2O(1)
(a)
Describe the experimental procedure for the titration carried out by the student.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.