3a. The table below shows the results of an experiment performed by reacting 6.0g of a metal M with 10.0cm3 of 0.50 mol/dm3 HCI. 5 10 15 20 25 30 40 Time (sec) Volume of H2 collected (cm) 60 100 150 30 50 65 75 83 89 94 100 101 101 i. ii. Plot a graph of the volume of hydrogen collected against the time taken. Calculate the rate of the reaction in cm/sec. State the time taken for reaction to reach completion. Iv. Why did the 5-second intervals changed after 30 seconds? iii. b. On the same axes as in 3a above, sketch and explain the curve that would be obtained at (i). a higher temperature (ii) a lower acid concentration