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solniwko [45]
3 years ago
6

Which of the following aqueous solutions will have the lowest vapor pressure at 25°C?

Chemistry
2 answers:
Vladimir79 [104]3 years ago
8 0

C. 1.0 M Al2O3 would be the best answer

34kurt3 years ago
7 0

The answer is "D" Because Raoult's law, is that Vapor pressure is directly proportional to the mole fraction of the solution. So 1.0M CaF2 will be the least in this case.

Hope this help please let me know id it was correct



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What describes the change in oxidation states of the following reaction
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7 0
3 years ago
How does molarity and molality affect the concentration of a solution<br>explain.
kolbaska11 [484]

Concentration of a solution can be expressed in terms of molarity and molality

Molarity is the number of moles of solute in a liter of a solution.

Molarity (M) = Moles of solute/Volume(litres) of solution

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Therefore if the volume or the mass of the solution is changed this would affect the concentration.

In addition, volume is a quantity which depends on temperature. However, mass is independent of temperature. Therefore any changes in temperature, can also bring about a change in the molarity of the solution.


5 0
3 years ago
In an experiment magnesium ribbon was heated in air. The product was found to be heavier than the original ribbon. Potassium man
KatRina [158]

Burning a magnesium ribbon in the air is an addition reaction while heating potassium manganate 7 is a decomposition reaction.

<h3>Addition and decomposition reactions</h3>

Magnesium burns in air to produce magnesium oxide as follows:

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Potassium manganate 7 burns to produce multiple products as follows:

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Thus, the MgO will be heavier than Mg. On the other hand, MnO_2 will be less heavy than KMnO_4.

More on reactions can be found here: brainly.com/question/17434463

#SPJ1

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Soloha48 [4]
Okay
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1ml=1cm3
hence the volume of the rock is 5cm3
3 0
3 years ago
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Naya [18.7K]
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