Topic 14- Redox 2

Question 1

Explain an advantage of using methanol rather than hydrogen in a fuel cell

Answer 1

• methanol is a liquid at room temperature so it is easier to transport and store.
• hydrogen is flammable/explosive

Question 2

Describe steps to making a standard solution of KMno4

Answer 2

• weigh out required amount with weighing boat
• empty into beaker and weigh boat again
• add small volume of water to dissolve
• transfer washings to volumetric flask
• make up to mark with distilled water

Question 3

How is hydrogen stored from fuel cells

Answer 3

By adsorption on the surface of a solid at low pressure

can be liquified under high pressure