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omeli [17]
3 years ago
7

How much heat (kJ) is absorbed from water in order for 5.50 moles NH4NO3 to dissolve in water?

Chemistry
1 answer:
umka21 [38]3 years ago
7 0
50. °C to dissolve in water
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As fuel is burned in an airplane, it seems to disappear from the tank, suggesting that matter is destroyed during the reaction.
gregori [183]

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How many molecules are in 3.50 moles of H2O<br>​
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2.11 x 10²⁴ molecules.

Explanation:

  • <em>It is known that every 1.0 mole of a molecule contains Avogadro's number of molecules (NA = 6.022 x 10²³).</em>

<em><u>Using cross multiplication:</u></em>

1.0 mole of H₂O contains → 6.022 x 10²³ molecules.

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∴ 3.5 mole of H₂O contain = (3.5 mol)(6.022 x 10²³) = 2.11 x 10²⁴ molecules.

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Explanation:

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