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KengaRu [80]
3 years ago
11

N-hexane boils at 68.7 oC at 1.013 bar and the heat of Vaporization is 28850

Chemistry
1 answer:
miss Akunina [59]3 years ago
8 0
He one 28850




C. C c c.
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Evaporation is commonly used to concentrate dissolved solids in a liquid feed stream and produce pure water vapor.
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Answer:

True

Explanation:

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Pure water vapour can be produced by evaporation.

As the liquids are removed, the solids present in solution becomes more concentrated.

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How do you solve for the Atomic Mass in chemistry?
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4 years ago
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A compound is found to contain 50. 05% sulfur and 49. 95% oxygen by mass. What is the empirical formula for this compound? SO S2
jekas [21]

The empirical formula for the given compound has been \rm SO_2. Thus, option C is correct.

The empirical formula has been the whole unit ratio of the elements in the formula unit.

<h3>Computation for the Empirical formula</h3>

The given mass of Sulfur has been, 50.05 g

The given mass of oxygen has been 49.95 g.

The moles of elements in the sample has been given by:

\rm Moles=\dfrac{Mass}{Molar\;mass}

  • Moles of Sulfur:

\rm Moles\;S=\dfrac{50.05}{32}\\&#10; Moles\;S=1.56\;mol

The moles of sulfur in the unit has been 1.56 mol.

  • Moles of Oxygen:

\rm Moles\;O=\dfrac{49.95}{16} \\&#10;Moles\;O=3.12\;mol

The moles of oxygen in the unit has been 3.12 mol.

The empirical formula unit has been given as:

\rm S_{1.56}O_{3.12}=SO_2

Thus, the empirical formula for the given compound has been \rm SO_2. Thus, option C is correct.

Learn more about empirical formula, here:

brainly.com/question/11588623

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2 years ago
Help ASAP 15 points
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Answer: number 1

Explanation:

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Which two structures would provide a positive identification of a plant cell under a microscope
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Lysosome, central vacuole
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