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goldenfox [79]
3 years ago
7

The chemical equation shows iron(III) phosphate reacting with sodium sulfate. 2FePO4 + 3Na2SO4 mc010-1.jpg Fe2(SO4)3 + 2Na3PO4 W

hat is the theoretical yield of Fe2(SO4)3 if 20.00 g of FePO4 reacts with an excess of Na2SO4? 26.52 g 53.04 g 150.8 g 399.9 g
Chemistry
2 answers:
luda_lava [24]3 years ago
7 0
Answer: 26.52g

Solution step-by-step:

1) Chemical equation:

<span>2FePO4 + 3Na2SO4 → Fe2(SO4)3 + 2Na3PO4

2) Theoretical molar ratios:

2 mol FePO4 : 3 mol Na2SO4 : 1 mol Fe2(SO4)3 : 2 mol Na3PO4

3) Convert 20.00 g of FePO4 into number of moles

number of moles = mass in grams / molar mass

molar mass of FePO4 = 150.82 g/mol

numer of moles = 20.00 g / 150.82 g/mol = 0.1326 mol FePO4

4) Proportionality

1 mol Fe2(SO4)3                x
----------------------- =  ------------------------
2 mol FePO4           0.1326 mol FePO4

Solve for x:

x = (0.1326 / 2) * 1 mol Fe2(SO4)3 = 0.0663 mol Fe2(SO4)3

5) Convert 0.0663 mol Fe2(SO4)3 into grams

mass in grams = number of moles * molar mass

molar mass Fe2(SO4)3 = 399.88 g/mol

mass = 0.0663 mol * 399.88 g/mol = 26.51 g

Depending on the number of decimal digits used by one or other you might obtain 26.52 instead 26.51, that difference does not count.
</span>
wlad13 [49]3 years ago
5 0

Answer:

26.52 g

Explanation:

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