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pshichka [43]
1 year ago
8

It 32g of potassium nitrate can be dissolved in 1cm3 of water at 20oC before a saturated solution is obtained, how much potassiu

m nitrate would be able to dissolve in 5cm3 of water at the same temperature?
Chemistry
1 answer:
Dmitry_Shevchenko [17]1 year ago
7 0

Answer:

160 gm

Explanation:

Five times as much water means you can dissolve 5 times as much potassium nitrate    5 x 32 = 160 gm  <u> <===== this seems unlikely though as I doubt 32 g  of  potassium nitrate will dissolve in only  1 cm^3 of water 1 cm^3 of water is only 1 gm of water </u>

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alexandr402 [8]

Molar heat of vaporization is defined as the heat absorbed by one mole of substance to convert from liquid to gas.

<h3>How do you calculate the heat of vaporization?</h3>

The formula used to calculate the heat of vaporization is:

\rm Q &= n \times \Delta H

Where,

Q = Amount of Heat

n = number of moles of a substance

\Delta H = molar enthalpy of fusion

Now, to calculate the moles of methane:

\rm Moles &= \dfrac{Mass \;of\; methane }{Molar\; Mass\; of \; Methane} &= \dfrac{54.8\;g}{16\;g/mol}

Moles = 3.425 mol

Now, 1 mol of methane absorbs = 8.53 KJ

3.425 mol of methane absorbs = 3.424 \times 8.53 &= 29.1 KJ

Thus, the energy is absorbed till the methane vaporizes at its boiling point is 29.1 KJ.

Learn more about <u>vaporization </u>here:

brainly.com/question/2491083

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2 years ago
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Answer:

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Explanation:

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Hope this helps! I found it when I searched your question.

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Explanation:

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