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3 years ago

13

What is the mole fraction of ethanol in a mixture of 0.25 mol of ethanol and 0.4 mol of methanol? Report your answer to the hund

reths place.

1 answer:

snow_tiger [21]3 years ago

6 0

Answer:

0.3846

Explanation:

i used fractions

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If 0.450 moles of iron III oxide (Fe2O3) are allowed to react with an excess of aluminum (Al) and 43.6 grams of iron (Fe) is pro

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What is the wavelength of light with 2.89 x 10-19 J of energy? (The speed of

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$\\ \rm\rightarrowtail E=hv$

$\\ \rm\rightarrowtail E=\dfrac{hc}{\lambda}$

lambda is wavelength
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$\\ \rm\rightarrowtail \lambda=\dfrac{hc}{E}$

$\\ \rm\rightarrowtail \lambda=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{2.89\times 10^{-19}}$

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