Question

Given the following equation: Zn + 2HCI - H2 + ZnCl2

How many moles of HCl are needed to react with 0.50
moles of Zn?

Answer 1

To react with 0.5 moles of Zn 1 mole of HCl is required

Step-by-step explanation:

Given data:

Number of moles of Zn = 0.50 mol

Number of moles of HCl = ?

Chemical equation:

Zn + 2HCl → H₂ + ZnCl₂

Now we will compare the moles of Zn and HCl through balance chemical equation.

Zn : HCl

1 : 2

0.50 : 2×0.5 = 1 mol

In order to react with 0.5 moles of zinc 1 mole of HCl is required.