<h3>
Answer:</h3>
72.19 g HCl
<h3>
Explanation:</h3>
We are given the reaction between hydrogen gas and chlorine gas as;
H₂(g) + Cl₂(g) → 2HCl(g)
Mass of hydrogen gas that reacts is 2 g
We are required to determine the amount of HCl produced
<h3>Step 1: Determine the number of moles of H₂ used </h3>
Moles = Mass ÷ molar mass
Molar mass of Hydrogen gas = 2.02 g/mol
Thus;
Moles = 2 g ÷ 2.02 g/mol
= 0.99 moles
<h3>Step 2: Moles of HCl produced </h3>
From the reaction equation, 1 mole of hydrogen gas reacts to produce 2 moles of HCl
Therefore, the mole ratio of H₂ : HCl = 1 : 2
Thus, moles of HCl = 0.99 moles × 2
= 1.98 moles
<h3>Step 3: Mass of HCl produced </h3>
To calculate mass we multiply the number of moles by molar mass
Molar mass of HCl =36.46 g/mol
Therefore;
Mass of HCl = 36.46 g/mol × 1.98 moles
= 72.19 g
Thus, the amount of HCl produced during the reaction is 72.19 g
