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3 years ago

How many moles of nitrogen are contained in 18.65 L at STP?

Chemistry

2 answers:

stira [4]3 years ago

8 0

1 mole of any gas under STP ----- 22.4 L

18.65 L*1 mol/22.4 L ≈ 0.8326 mol N2

Doss [256]3 years ago

3 0

1 mole of any gas under STP ----- 22.4 L

18.65 L*1 mol/22.4 L ≈ 0.8326 mol N2

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6. What is the pressure of 0.60 moles of a gas if its volume is 10.0 liters at 35.0°C?

denis-greek [22]

Answer: The pressure inside the cylinder will be 1.5 atm. The pressure can be calculated using the Ideal Gas Equation which relates the pressure, volume, temperature, and amount of gas to each other.

Further Explanation

The Ideal Gas Equation is:

$PV = nRT$

where:

P - pressure (in atm)

V - volume (in L)

n - amount of gas (in moles)

R - universal gas constant $0.08206 \frac{L-atm}{mol-K}$

T - temperature (in K)

In the problem, we are given the values:

P = ?

V = 10.0 L (3 significant figures)

n = 0.60 moles ( 2 significant figures)

T = 35.0 degrees Celsius (3 significant figures)

We need to convert the temperature to Kelvin before we can use the Ideal Gas Equation. The formula to convert from degree Celsius to Kelvin is:

$Temperature \ in \ Kelvin = Temperature\ in \ Celsius \ + \ 273.15$

Therefore, for this problem,

$Temperature\ in \ K = 35.0 +273.15\\Temperature\ in \ K = 308.15$

Solving for P using the Ideal Gas Equation:

$P = \frac{nRT}{V} \\P = \frac{(0.60\ mol) \ (0.08206 \ \frac{L-atm}{mol - K}) \ (308.15\ K) \ }{10.0 \ L} \\P = 1.51\ atm$

The least number of significant figures is 2, therefore, the final answer must have only 2 significant figures.

Learn More

1. Learn more about Boyle's Law brainly.com/question/1437490

2. Learn more about Charles' Law brainly.com/question/1421697

3. Learn more about Avogadro's Law brainly.com/question/1964205

Keywords: Ideal Gas Law, Gas Pressure

7 0

3 years ago

An organism that is able to form nutritional organic substances from simple inorganic

marysya [2.9K]

Answer:

An autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

4 0

2 years ago

When PCl5 solidifies it forms PCl4+ cations and PCl6– anions. According to valence bond theory,

rewona [7]

Hey there!

No of hybrid orbitals , H = ( V +S - C + A ) / 2

Where H = no . of hybrid orbitals

V = Valence of the central atom = 5

S = No . of single valency atoms = 4

C = No . of cations = 1

A = No . of anions = 0

For PCl4 +

Plug the values we get H = ( 5+4-1+0) / 2

H = 4 ---> sp3 hybridization

sp3 hybrid orbitals are used by phosphorous in the PCl4+ cations

Answer C

Hope that helps!

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3 years ago

Which of the conservationists discussed earlier in this unit is

Arte-miy333 [17]

The correct answer is A. The conservationist credited with founding the Wilderness Society is Bob Marshall.

Bob Marshall was an American forester, botanist, traveler, climber, writer and social activist who advocated the preservation of unspoiled wildlife.

He actively contributed to the development and adoption of environmental regulations prohibiting the construction of roads in vast federal specially protected natural areas. In 1935 he became one of the founders of the public environmental organization The Wilderness Society and its main sponsor.

Today Bob Marshall is considered one of the main initiators of the wildlife movement in the United States. Several geographic features are named after him, including the Bob Marshall Wilderness Nature Reserve in Montana and the Marshall Mountain on the Adirondack Ridge.

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2 years ago

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When a metal bonds with a nonmetal, the bond that is formed is a(n) ___.

bekas [8.4K]

Ionic Bond, which is the transfer of electrons of a metal to a non-metal.

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3 years ago

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