Results: Draw and label a diagram of your experiment. Plot these results on a graph. Variables: Explain what caused the observed effects: Describe your results: Experiment C Measuring the effect of concentration on the rate of a reaction – Equipment: Procedure: Add about 5 marble chips to the conical flask Hydrochloric acid Add 25cm3 of 0.5 mol/dm3 hydrochloric acid (0.2mol/dm3, 0.5 mol/dm3 Place a plug of cotton wool in the neck of the flask & 1mol/dm3) Place the flask on the balance, record the mass and Marble chips start the stopwatch. Stopwatch Record the mass every 10 seconds for 2 minutes. Conical Flask Repeat for 0.2mol/dm3 and 1mol/dm3 concentrations of Top pan balance hydrochloric acid. Measuring cylinder (25cm3) Cotton wool Results: Draw and label a diagram of your experiment.
Results: Plot these results on a graph. Draw and label a diagram of your experiment. Variables: Explain what caused the observed effects: Describe your results: Experiment C – Measuring the effect of concentration on the rate of a reaction Equipment: Hydrochloric acid (0.2mol/dm3, 0.5 mol/dm3 & 1mol/dm3) Marble chips Stopwatch Conical Flask Top pan balance Measuring cylinder (25cm3) Cotton wool Procedure: Add about 5 marble chips to the conical flask Add 25cm3 of 0.5 mol/dm3 hydrochloric acid Place a plug of cotton wool in the neck of the flask Place the flask on the balance, record the mass and start the stopwatch. Record the mass every 10 seconds for 2 minutes. Repeat for 0.2mol/dm3 and 1mol/dm3 concentrations of hydrochloric acid. Results: Draw and label a diagram of your experiment.