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chubhunter [2.5K]
2 years ago
8

What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. °C and standard pressure?

Chemistry
1 answer:
KatRina [158]2 years ago
3 0

Answer:

1.14 mol

Explanation:

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Chemistry is the definition​
KIM [24]

Answer:

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Explanation:

Hope this helps. :)

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3 years ago
1. How do organisms maintain homeostasis?
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Answer:

Maintenance of homeostasis usually involves negative feedback loops. These loops act to oppose the stimulus, or cue, that triggers them.

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3 years ago
A mixture with H2 and He exerts a total pressure of 0.48 atm. If there is 1.0 g of H2 and 1.0 g of He in the mixture, what is th
lara [203]

Answer is: the partial pressure of the helium gas is 0.158 atm.

p(mixture) = 0.48 atm; total pressure.

m(H₂) = 1.0 g; mass of hydrogen gas.

n(H₂) = m(H₂) ÷ M(H₂).

n(H₂) = 1.0 g ÷ 2 g/mol.

n(H₂) = 0.5 mol; amount of hydrogen.

m(He) = 1.0 g; mass of helium.

n(He) = 1 g ÷ 4 g/mol.

n(He) = 0.25 mol; amount of helium.

χ(H₂) = 0.5 mol ÷ 0.75 mol.

χ(H₂) = 0.67; mole fraction of hydrogen.

χ(He) = 0.25 mol ÷ 0.75 mol.

χ(He) = 0.33; mole fraction of helium.

p(He) = 0.33 · 0.48 atm.

p(He) = 0.158 atm; the partial pressure of the helium gas.

8 0
3 years ago
Based on periodic properties, what two or three elements would you expect to be most like carbon?
ArbitrLikvidat [17]
Silicon which is just below carbon has more similarities of properties with carbon. Germanium can be another
7 0
3 years ago
Calculate the [OH–] if the hydrogen ion concentration is 3.64 x 10–8 M.
KIM [24]
Hello.


He have that:

[H+][OH-] = 10⁻¹⁴

3.64 x 10⁻⁸ [OH-] = 10⁻¹⁴

[OH-] = 0.27 x 10⁻⁶ mol/L
3 0
3 years ago
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