The structure of the hormone thyroxine is giv | vedclass

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Question

(B) The molecular formula of thyroxine is $C_{15}H_{11}O_4NI_4$.Calculate the molecular mass of thyroxine:$C: 15 	imes 12 = 180$$H: 11 	imes 1 = 11$

Vedclass · Accepted Answer

$65$

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(B) The molecular formula of thyroxine is $C_{15}H_{11}O_4NI_4$.Calculate the molecular mass of thyroxine:$C: 15 	imes 12 = 180$$H: 11 	imes 1 = 11$$O: 16 	imes 4 = 64$$N: 14 	imes 1 = 14$$I: 127 	imes 4 = 508$Total molecular mass $= 180 + 11 + 64 + 14 + 508 = 777 \ g \ mol^{-1}$.Percentage of iodine $= \frac{	ext{Mass of Iodine}}{	ext{Total Molecular Mass}} 	imes 100$Percentage of iodine $= \frac{508}{777} 	imes 100 \approx 65.38 \%$.The nearest integer is $65$.

The structure of the hormone thyroxine is given below. The percentage of iodine in thyroxine is $..........\%$. ($nearest$ $integer$)
($Given$ $molar$ $mass$ $in$ $g \ mol^{-1}: C: 12, H: 1, O: 16, N: 14, I: 127$)

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The structure of the hormone thyroxine is given below. The percentage of iodine in thyroxine is $..........\%$. ($nearest$ $integer$)($Given$ $molar$ $mass$ $in$ $g \ mol^{-1}: C: 12, H: 1, O: 16, N: 14, I: 127$)