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Anna11 [10]
4 years ago
7

For C2H5OH (liquid)So = 161 J/K.mol; for C2H5OH (gas)So = 282.6 J/K.mol. What is ΔS if 92 g of C2H5OH is evaporated?

Chemistry
1 answer:
ira [324]4 years ago
6 0
Tye answer is 111.5 j/k
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5 0
3 years ago
How many molecules of CH4 are in 24.1 g of this compound?
jok3333 [9.3K]

<u>1) find molar mass of CH₄</u>

=12.01+4(1.01)\\\\=16.05\ g/mol

<u>2) determine moles of CH₄</u>

=24.1g\ CH_{4}\ x\ \frac{1\ mol\ CH_{4}}{16.05g\ CH_{4}}\\\\=1.501557632\ mol\ CH_{4}

<u>3) multiply by avogadro's number</u>

=1.501557632\ mol\ CH_{4}\ x\ \frac{6.022\ x\ 10^{23}\ molecules\ CH_{4}}{1\ mol\ CH_{4}} \\\\=9.04238006\ x\ 10^{23}\\\\=9.04\ x\ 10^{23}\ molecules\ CH_{4}

7 0
2 years ago
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bija089 [108]

Answer:

2.00moles

Explanation:

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