fix grammar

As a result of effect of concentration on rate of reaction was clarify investigation further variable such as pressure would attribute to accuracy of the data.

Due to the impact of concentration on the rate of reaction, further investigation should be conducted to determine the influence of variables such as pressure on the accuracy of the data.

"To clarify the investigation further, variables such as pressure would be attributed to the accuracy of the data, as a result of the effect of concentration on the rate of reaction."