The group 13, period 5 metal in the periodic table

Chemistry

1 answer:

MAXImum [283]2 years ago

3 0

Boron is the fifth element located in the thirteenth group of the periodic table.

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Find the volume occupied by 4.00 g of helium gas at <br> 25.0o C and 1.18 atm of pressure.

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Answer: 41.46 L

Explanation:

La ecuación que describe relación entre presión, volumen, temperatura y la cantidad (en moles)

de un gas ideal es: PV = nRT

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R = 0.082 L. atm/mol. °K

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Calculanting n

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Using the atomic masses and relative abundance of the isotopes of nitrogen given below, determine the average atomic mass of nit

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A student needed to dissolve a substance that she knew was soluble in water. according to the chart, which other solvent would m

Dmitry [639]

The chart is attached below and the options are as follow,

A Benzene

B Methanol

C Hexane

D Octane

Answer:
Option-B (Methanol) is the correct answer.

Explanation:
As we know that the substance given to student is soluble in water. Therefore, those substances which are soluble in water are polar in nature because water is polar in nature and Like Dissolves Like.
Hence, in chart it can easily be seen that Methanol is also polar in nature due to presence of -O-H (polar) bond. So, the substance will dissolve in it.