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rusak2 [61]
3 years ago
15

Write a scientific argument that addresses the question: Which suspect is most likely to have made the hydrofluoric acid? First,

state your claim. Then, use evidence to support your claim. For each piece of evidence you use, explain how the evidence supports your claim. As you write, refer back to your completed Modeling Tool sheets and Science Seminar Evidence Cards.
We need 2 reasons why its either Pat or Tracy. I need a paragraph on it.
ILL GIVE BRANLIEST TO THE BEST ANSWER THATS A PARAGRAPH AND GIVES 2 REASONS WHY ITS EITHER PAT OR TRACY!!

Chemistry
1 answer:
aniked [119]3 years ago
7 0

Answer:

Pat is most likely to have made the hydrofluoric acid.

Explanation:

How is hydrofluoric acid made?

It is manufactured by heating purified fluorspar (calcium fluoride) with concentrated sulfuric acid to produce the gas, which is then condensed by cooling or dissolving in water. ... The acid hydrolysis of fluorite-containing minerals generates an impure gas stream consisting of sulfur dioxide, water and HF.

that's all I got sorry

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Answer: 31.8 g

Explanation:

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\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

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\text{Moles of} C=\frac{30.0g}{12g/mol}=2.5moles

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According to stoichiometry :

1 mole of Al_2O_3 require 3 moles of C

Thus 0.59 moles of Al_2O_3 will require=\frac{3}{1}\times 0.59=1.77moles  of C

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As 1 mole of Al_2O_3 give = 2 moles of Al

Thus 0.59 moles of Al_2O_3 give =\frac{2}{1}\times 0.59=1.18moles  of Al

Mass of Al=moles\times {\text {Molar mass}}=1.18moles\times 27g/mol=31.8g

Thus 31.8 g of Al will be produced from the given masses of both reactants.

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