Required Practical: Rate Of Reaction In Gases

Question 1

What is the reaction we are doing?

Answer 1

Magnesium + hydrochloric acid ——> magnesium chloride + hydrogen

Question 2

What are we aiming to do with this reaction?

Answer 2

Measuring hydrogen produced
To find how the rate of reaction differs depending on the concentration of the chemicals

Question 3

Step 1

Answer 3

50cm3 of HCl in conical flask

Question 4

Step 2

Answer 4

Attach flask to a bung and delivery tube

Question 5

Step 3

Answer 5

Place delivery tube into container tray with water

Question 6

Step 4

Answer 6

Place upturned measuring cylinder filled with water over delivery tube

Question 7

Step 5

Answer 7

Add stop or magnesium metal into the acid conical flask and begin stop watch

Question 8

Step 6

Answer 8

Hydrogen produced which goes through delivery tube and trapped in measuring cylinder
So we measure volume of this every 10s until there is no more given off

Question 9

Step 7

Answer 9

Repeat whole experiment using different concentrations of hydrochloric acid

Question 10

Independent variable

Answer 10

Concentrations of hydrochloric acid

Question 11

Control variable

Answer 11

Mass of magnesium, temperature, volume of hydrochloric acid