If 2g of zinc granules was reacted with excess dilute HCl to evolve hydrogen gas which came to completion after 5 minutes. Calculate the rate of the chemical reaction in g/hr. Please please please answer quickly

The rate of the chemical reaction is 25 g/hr.

The Rate of reaction refers to the rate at which reactants are used up or the rate at which products appear.

So, the formula for the rate of reaction is as follows:-

........(1)

Mass of reactant used up= 2g

Time taken = 5 minutes

Convert the time in minutes to hour as follows:-

Substitute the given values in equation (1) as follows:-

Hence, the value of the rate of the chemical reaction is 25 g/hr.

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25 g/hr

Explanation:

Remember that the rate of reaction refers to the rate at which reactants are used up or or the rate at which products appear.

Hence;

Rate of reaction = mass of reactant used up/time taken

Mass of reactant used up= 2g

Time taken = 5 minutes or 0.08 hours

Rate of reaction = 2g/0.08 hours = 25 g/hr

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