I would really appreciate it if someone helped me out with this question.

a) 0.085 moles of Fe₂(SO₄)₃  are produced.

b) Percent yield = 54.4%

Explanation:

Given data:

Moles of FePO₄ = 0.17mol

Number of moles of Fe₂(SO₄)₃ = ?

Solution:

Chemical equation:

2FePO₄ + 3Na₂SO₄           →       Fe₂(SO₄)₃ + 2Na₃PO₄

Now we will compare the moles of FePO₄ with Fe₂(SO₄)₃

                       FePO₄            :         Fe₂(SO₄)₃

                           2                 :                1

                         0.17               :           1/2×0.17 = 0.085 mol

From 0.17 moles of FePO₄ 0.085 moles of Fe₂(SO₄)₃  are produced.

b)

Given data:

Mass of  Fe₂(SO₄)₃  produced = 18.5 g

Percent yield = ?

Solution:

Theoretical yield of Fe₂(SO₄)₃:

Mass = number of moles × molar mass

Mass = 0.085 mol × 399.88 g/mol

Mass = 34 g

Percent yield:

Percent yield = (actual yield / theoretical yield )× 100

Percent yield = (18.5 g / 34 g) × 100

Percent yield = 54.4%

the answer is c

tell me if wrong

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.