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Author Question: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated ... (Read 70 times)

neverstopbelieb

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on: Mar 21, 2021
Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated from the thyroid gland. If 0.455 g of thyroxine is dissolved in 10.0 g of benzene, the freezing point of the solution could be measured as 5.144°C. Pure benzene freezes at 5.444°C and has a value for the molal freezing point depression constant of Kf of 5.12°C/m. What is the approximate molar mass of thyroxine?

◦ 7.77 × 105 g/mol
◦ 777 g/mol
◦ 7.77 g/mol
◦ 11.3 g/mol
◦ 42.8 g/mol
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by neverstopbelieb on Mar 21, 2021

tmlewis4706

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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neverstopbelieb

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Reply 2 on: Mar 21, 2021
Gracias!

peter

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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