CHEMISTRY MIDDLE SCHOOL

A 40.8 mol sample of methane gas, CH4(g), is placed in a1020 L container at 298 K.
What is the pressure, in atm, of the methane gas?
Express the answer using 3 significant figures.
atm

Answers

Answer 1
Answer:

Answer:

P = 0.979 atm

Explanation:

Given data:

Number of moles of methane = 40.8 mol

Volume of container = 1020 L

Temperature = 298 K

Pressure of gas =?

Solution:

According to ideal gas equation,

PV = nRT

P = pressure

V = volume

n = number of moles

R = general gas constant

T = temperature

Now we will put the values,

P = nRT/V

P = 40.8 mol × 0.0821 atm.L/mol.K × 298 K / 1020 L

P = 998.2 atm /1020

P = 0.979 atm

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Answers

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Final answer:

Hydrogen is a nonmetal that does not exhibit properties such as malleability or ductility. Hydrogen is a unique element in the universe and its physical and chemical properties differ markedly from malleable or ductile elements, such as metals. Thus, hydrogen is neither malleable, ductile, nor brittle.

Explanation:

Hydrogen is a unique element in the universe, and its physical and chemical properties differ significantly from those of elements that are classified as malleable or ductile, such as metals. Properties such as being shiny, malleable, and ductile are characteristics of metals which can be deformed without breaking or drawn into wires, and they conduct heat and electricity well. However, hydrogen is a nonmetal and under normal conditions, it is relatively inactive chemically. It does not demonstrate properties like malleability or ductility as metals do. Hence, hydrogen is not malleable, ductile, or brittle.

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Answers

Answer:

Both soluble metal salt and carbon dioxide may react with a base to form a solid or what we call a precipitate,

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Answers

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Answers

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Answers

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Answers

Answer:

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