Given the balanced equation:

ZnSO4 + SrCl2 > SrSO4 + ZnCl2

What number of moles of SrCl2 is consumed when 54 g of ZnCl2 is produced?

a) 0.16 b) 0.3 c) 0.79 d) 1.58 e) 0.4

The moles of . 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 consumes 1 mole of .

The molecular weight of = 136.28 g/mol

The moles of in 54 g:

Moles =

Moles of = mol

Moles of = 0.4 mol

Since, 1 mole = 1 mole  .

0.4 mol = 0.4 mole .

Thus, the moles of . 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:

link

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.

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