3 years ago

During which process in the water cycle does water release thermal energy? Explain how you know.

Chemistry

1 answer:

Varvara68 [4.7K]3 years ago

8 0

Agreed with the person on top ^^^

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An aqueous solution containing 10 g of an optically pure compound was diluted to 500 mL with water and was found to have a speci

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Optical purity = 76.9231 %

Specific rotation of mixture = - 97.6923 °

Explanation:

The mass of the racemic mixture = 3 g

It means it contains R enantiomer = 1.5 g

S enantiomer = 1.5 g

Amount of Pure R = 10 g

Total R = 11.5 g

Total volume = 500 mL + 500 mL = 1000 mL = 1 L

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[S] = 1.5 g/L

Enantiomeric excess = $\frac {Excess}{Total\ Concentration}\times 100$ = $\frac {11.5-1.5}{11.5+1.5}\times 100$ = 76.9231 %

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Optical purity = $\frac {optical\ rotation\ of\ mixture}{optical\ rotation\ of\ pure\ enantiomer}\times 100$

Optical rotation of pure enantiomer = −127 °

$76.9231=\frac {optical\ rotation\ of\ mixture}{-127^0}\times 100$

Specific rotation of mixture = - 97.6923 °

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During which process in the water cycle does water release thermal energy? Explain how you know.​

During which process in the water cycle does water release thermal energy? Explain how you know.