2 years ago

POSSIB

Chemistry

1 answer:

siniylev [52]2 years ago

8 0

Answer:

96.99 C degree change

Explanation:

480 cal / ( 150 g * .033 cal/g-C ) = 96.99 C

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A solution is made by mixing equal masses of methanol, CH 4 O , and ethanol, C 2 H 6 O . Determine the mole fraction of each com

Fynjy0 [20]

Answer:

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Let the mass of $CH_4O$ and $C_2H_6O$ = x g

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$moles = \frac{Mass\ taken}{Molar\ mass}$

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Thus,

$Moles= \frac{x\ g}{46.07\ g/mol}$

$Moles_{C_2H_6O}=\frac{x}{46.07}\ mol$

So, according to definition of mole fraction:

$Mole\ fraction\ of\ CH_4O=\frac {n_{CH_4O}}{n_{CH_4O}+n_{C_2H_6O}}$

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[
According to the equation:

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change -X -X +X +X

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∴X = 0.26

∴ [CO2] = X = 0.26

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3 years ago

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Q=mcat

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4,561.245 or 4.5 * 10^-3

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3 years ago