Question

What is the limitation of the reaction zn +2HCL GIVES ZNCL2+H2

Answer 1

1.85 g of hydrogen will form.

Explanation:

1. Write the balanced equation.

Zn+2HCl→ZnCl2+H2

2. Calculate the moles of Zn.

Moles of Zn=30.0g Zn×1 mol Zn65.38g Zn=0.4589 mol Zn

3. Calculate the moles of H2.

Moles of H2=0.4589mol Zn×2 mol H21mol Zn=0.9177 mol H2

4. Calculate the mass of H2.

Mass of H2=0.9177mol H2×2.016 g H21mol H2=1.85 g H2