Answer:
The Water Displacement method
Answer:
The valence electrons are involved in the chemical bonds.
Explanation:
In chemical bonds, atoms lose, gain or share electrons. The valence electrons (those located in the last energy level) in the chemical bonds are involved. These links are made to comply with the law of the octet (complete 8 electrons in the last energy level), for the chemical stability of the atoms.
Answer:
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 question is asking to state the term that is often mistakenly regarded as being base on science and base on my research and further analysis, I would say that the answer would be a Pseudoscience. I hope you are satisfied with my answer and feel free to ask for more if you have question
