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Aleonysh [2.5K]
3 years ago
5

Calculate the volume in L of 12.9 g of NO2 at STP.

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer:

6.28 L

Explanation:

Given data:

Volume of NO₂ = ?

Mass of NO₂ = 12.9 g

Temperature and pressure = ?

Solution:

First of all we will calculate the number of moles of gas.

Number of moles = mass/molar mass

Number of moles = 12.9 g/ 46 g/mol

Number of moles = 0.28 mol

At standard temperature and pressure 1 mole of gas occupy 22.4 L volume.

Thus,

0.28 mol × 22.4 L/1 mol

6.27 L ≅ 6.28 L

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Answer:

The answer to this is

Unsaturated solution

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The two processes that occur on dissolving a solute in a solvent are dissolution and crystallization and in an unsaturated solution the rate of dissolution is greater than the rate of crystallization

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Answer:

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Explanation:

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                      [ ]initial         change         [ ]eq

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⇒ Ka = (0.11) / (0.49 - 0.11)² (0.27 - 0.11)

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and the Ksp given are

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