Let the 8% solution be A, the 20% solution be B and the final solution be C.
C = A + B
C = 12 + B
0.16C = 0.08(12) + 0.2(B)
0.16(12 + B) = 0.96 + 0.2B
0.96 = 0.04B
B = 24 Liters
C = 12 + 24
C = 36 Liters
Answer:
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Are there choices we should be choosing from? Or do you just want an explanation?
Answer:
m(O₂) = 3.666 g
Explanation:
The rusting of iron is due to its reaction with oxygen. The balanced equation is:
4 Fe + 3 O₂ → 2 Fe₂O₃
According to Lavoisier's law of conservation of mass, the sum of the masses of the reactants is equal to the sum of the masses of the products.
m(reactants) = m(products)
m(Fe) + m(O₂) = m(Fe₂O₃)
8.531 g + m(O₂) = 12.197 g
m(O₂) = 3.666 g
Stuff about the earth and tectonic plates, and about space and stuff.
