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Nikolay [14]
4 years ago
12

What is the mole fraction?​

Chemistry
2 answers:
sleet_krkn [62]4 years ago
7 0
Mole fraction is a unit of concentration, defined to be equal to the number of moles of a component divided by the total number of moles of a solution. Because it is a ratio, mole fraction is a unitless expression. The mole fraction of all components of a solution, when added together, will equal 1.
Anna71 [15]4 years ago
3 0

Answer:

= Moles of solute / total moles solution

Explanation:

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The two columns on a data table represent the _________ variable and ________ variable
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Explanation:

Independent variable and dependent variable

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Why does temperature increase with altitude through the stratosphere?
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The air molecules are closer together in the upper stratosphere.

Explanation:

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What is the mass in grams of 5.50 moles of Copper, Cu?
stiv31 [10]

Answer:

349.503 g

https://www.convertunits.com/from/moles+Copper/to/grams

here is a link, you can convert moles of copper to grams here

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3 years ago
In a neutral solution, the concentration of H+ is<br> Group of answer choices
Dmitrij [34]

Answer:

equal to [OH-]

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6 0
3 years ago
Which of the following occurs during a redox reaction?
GenaCL600 [577]

Answer:

C = Electrons are won and lost.

Explanation:

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Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Consider the following reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

the oxidation state of copper is changed from +2 to +1 so copper get reduced.

CO + H₂O   →  CO₂ + H₂

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Na₂CO₃ + H₃PO₄  →  Na₂HPO₄ + CO₂ + H₂O

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The oxidation sate of sulfur is -2 on reactant side and in product side it is also -2 so it neither oxidized nor reduced.

Oxidizing agents:

Oxidizing agents oxidize the other elements and itself gets reduced.

Reducing agents:

Reducing agents reduced the other element are it self gets oxidized.

3 0
3 years ago
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