A student investigated the rate of reaction between magnesium ribbon and dilute hydrochloric acid. They measured the cumulative volume of hydrogen gas collected every minute.

Table 1 shows the cumulative volume of gas collected over 5 minutes.

Table 1

Table 2 shows the rates of reaction calculated from these results.

$$rate\; of\; reaction=\frac{volume\; of\; gas\; produced\; in\; the\; 1-minute\; interval}{1minute}$$

Table 2