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3 years ago

What volume measured in stp will 3.75 grams of helium gas occupy?

1 answer:

6 0

Molar mass helium gas :

He = 4.0 g/mol

number of moles: 3.75 / 4.0 => 0.9375 moles

1 mole ------ 22.4 ( at STP)
0.9375 ------ ?

volume = 0.9375 x 22.4 / 1

Volume = 21 / 1

Volume = 21 L

hope this helps!

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T = 409.5 K, P = 1.50 atm: V = ?L

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Explanation:

T = 409.5 K, P = 1.50 atm: V = 22.4 L The ideal gas law is: PV = nRT where. P = pressure. V = volume n = number of moles.

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2 years ago

A student used a vernier magnetic field sensor to measure the strength of the magnetic field generated by a bar magnet. at which

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The position is the strength of the magnetic field strongest is is the place where the magnetic field leaves, being point A.

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When an electrically charged particle moves, it creates a magnetic field. According to the laws of electromagnetism, this magnetic field originates from the variation of the electric field strength.

In the region of the poles we see that the lines of magnetic induction are closer to each other, therefore, we consider that close to the poles the magnetic field is more intense.

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1 year ago

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2 years ago

Consider the following reversible reaction.

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B is the correct option

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2 years ago

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4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g)

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1. The volume of ammonia consumed in the reaction is 23.2 L

2. The volume of oxygen consumed in the reaction is 29 L

<h3>Balanced equation</h3>

4NH₃(g) + 5O₂(g) --> 4NO(g) + 6H₂O(g)

From the balanced equation above,

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From the balanced equation above,

6 L of H₂O were produced from 4 L of NH₃

Therefore,

34.8 L of H₂O will be produced from = (34.8 × 4) / 6 = 23.2 L of NH₃

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From the balanced equation above,

6 L of H₂O were produced from 5 L of O₂

Therefore,

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1 year ago