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Alla [95]
2 years ago
15

You have a 5-liter container with 1.30 x 1024 molecules of ammonia gas (NH3) at STP.

Chemistry
1 answer:
bogdanovich [222]2 years ago
6 0

Answer:

3). 1.30 × 10^(24) molecules

Explanation:

From avogadro's law which state that equal volume of all gases at the same temperature and pressure contain the same number of molecules.

We can relate it to this question as;

V₁/n₁ = V₂/n₂

Where;

V₁ is initial volume

n₁ is initial number of molecules

V₂ is final volume

n₂ is final number of molecules

Thus at STP, we have V₁ = V₂ and as such Plugging in the relevant values gives;

5/(1.30 x 10^(24)) = 5/n₂

n₂ = 1.30 x 10^(24) molecules

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0.28gram of NH3 on decomposition gave 0.25gram of nitrogen and hydrogen. Find the volume of hydrogen evolved at Ntp. (2gram hydr
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The volume of H₂ evolved at NTP=0.336 L

<h3>Further explanation</h3>

Reaction

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0.28 NH₃= 0.25 N₂ + 0.03 H₂

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Does the excess reactant get used up completely in a reaction??
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Compare and contrast physical property and chemical property
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Calculate the osmotic pressure (in torr) of 6.00 L of an aqueous 0.958 M solution at 30.°C, if the solute concerned is totally i
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<u>Answer:</u> The osmotic pressure is 54307.94 Torr.

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To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

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Putting values in above equation, we get:

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