Answer:
0.4
Explanation:
Given data:
Number of moles of SrCl₂ consumed = ?
Mass of ZnCl₂ produced = 54 g
Solution:
Chemical equation:
ZnSO₄ + SrCl₂ → SrSO₄ + ZnCl₂
Number of moles of ZnCl₂:
Number of moles = mass/ molar mass
Number of moles = 54 g/136.3 g/mol
Number of moles = 0.4 mol
Now we will compare the moles of ZnCl₂ with SrCl₂ from balance chemical equation.
ZnCl₂ : SrCl₂
1 : 1
0.4 : 0.4
Thus when 54 g of ZnCl₂ produced 0.4 moles of SrCl₂ react.
The moles of [tex]\rm SrCl_2[/tex]. consumed by 54 grams of zinc chloride has been 0.4 moles. Thus the correct option is e.
From the given balanced equation, 1 mole of [tex]\rm ZnCl_2[/tex] consumes 1 mole of [tex]\rm SrCl_2[/tex].
The molecular weight of [tex]\rm ZnCl_2[/tex] = 136.28 g/mol
The moles of [tex]\rm ZnCl_2[/tex] in 54 g:
Moles = [tex]\rm \dfrac{weight}{molecular\;weight}[/tex]
Moles of [tex]\rm ZnCl_2[/tex] = [tex]\rm \dfrac{54}{136.28}[/tex] mol
Moles of [tex]\rm ZnCl_2[/tex] = 0.4 mol
Since, 1 mole [tex]\rm ZnCl_2[/tex] = 1 mole [tex]\rm SrCl_2[/tex].
0.4 mol [tex]\rm ZnCl_2[/tex] = 0.4 mole [tex]\rm SrCl_2[/tex].
Thus, the moles of [tex]\rm SrCl_2[/tex]. consumed by 54 grams of zinc chloride has been 0.4 moles. Thus the correct option is e.
For more information about the balanced chemical equation, refer to the link:
https://brainly.com/question/7181548
