Question

‼️SHOW ALL STEPS‼️ If 14.4 grams of iron reacts with hydrochloric acid, how many grams of hydrogen gas will be produced?

The unbalance equation for the reaction is: _ Fe(s) + __ HCl(aq)
FeCl3(aq) + -
H2(e)

Answer 1

Answer: 0.771 g of
`H_2` will be produced

Step-by-step explanation:

To calculate the moles :

`\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}`

`\text{Moles of} Fe=(14.4g)/(56g/mol)=0.257moles`

The balanced chemical reaction is:

`2Fe(s)+6HCl(aq)\rightarrow 2FeCl_3(aq)+3H_2(g)`

According to stoichiometry :

2 moles of
`Fe` produce = 3 moles of
`H_2`

Thus 0.257 moles of
`Fe` will produce=
`(3)/(2)* 0.257=0.385moles` of
`H_2`

Mass of
`H_2=moles* {\text {Molar mass}}=0.385moles* 2g/mol=0.771g`

Thus 0.771 g of
`H_2` will be produced