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expeople1 [14]
1 year ago
6

4.8 L sample of helium gas contains 0.22 moles of helium - How many additional moles of herum gas must be added to the sample to

obtain a volume of 6-4L?​
Chemistry
1 answer:
yawa3891 [41]1 year ago
7 0

Answer:

   

Explanation:

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A chemist measures the energy change ?H during the following reaction: 2HgO (s) ?2Hg (l) +O2 (g) =?H182.kJ Use the information t
Leni [432]

Answer:

The reaction is endothermic.

Yes, absorbed

3.06x10¹kJ are absorbed

Explanation:

In the reaction:

2HgO(s) → 2Hg(l) + O₂(g) ΔH = 182kJ

As ΔH >0,

<em>The reaction is endothermic</em>

<em />

As the reaction is endothermic, when the reaction occurs,

<em>the heat is absorbed.</em>

<em></em>

Now, based on the equation, when 2 moles of HgO (Molar mass: 216.59g/mol), 182kJ are absorbed.

72.8g are:

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