High School

If 46.5 grams of reactants are used in the following reaction, what will be the mass of the products?

\[
\text{Zn} + 2 \text{HCl} \rightarrow \text{ZnCl}_2 + \text{H}_2
\]

Answer :

Final answer:

The mass of the products in the given reaction will be 96.125 grams.

Explanation:

In the given reaction, the reactants are zinc (Zn) and hydrochloric acid (HCl), and the products are zinc chloride (ZnCl2) and hydrogen (H2).

To determine the mass of the products, we need to calculate the molar masses of Zn and ZnCl2.

Zn has a molar mass of 65.38 g/mol, and ZnCl2 has a molar mass of 136.3 g/mol.

Since the balanced equation shows that 1 mole of Zn reacts to produce 1 mole of ZnCl2 and 1 mole of H2, we can use the molar masses to find the mass of the products.

Given that 46.5 grams of reactants are used, we can calculate the mass of ZnCl2 produced using the following equation:

Mass of ZnCl2 = (46.5 g) * (136.3 g/mol / 65.38 g/mol) = 96.125 g

Therefore, the mass of the products will be 96.125 grams.