Answered

The equation shows the reaction between zinc metal and hydrochloric acid.



Zn(s) + 2HCl(aq) mc014-1.jpg ZnCl2(aq) + H2(g)



What is the theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid?

Verified Answer :

Answer:

B. 10.1

Explanation:

shristiparmar1221

The theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid is 10.1 g H₂

What is Theoretical yield ?

The theoretical yield is the maximum possible mass of a product that can be made in a chemical reaction.

It can be calculated from: the balanced chemical equation. the mass and relative formula mass of the limiting reactant , and. the relative formula mass of the product.

The balanced chemical reaction is written as:

Zn(s) + 2HCl(aq) = ZnCl₂(aq) + H₂(g)

Given,

The amount of the reactant zinc to be used in the reaction which would be the starting point for the calculation.

It is as follows :

5.00 mol Zn ( 1 mol H₂ / 1 mol Zn ) (2.02 g H₂ / 1 mol H₂ )

               = 10.1 g H₂

Hence, The theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid is 10.1 g H₂

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