We can infer that 4 moles of iodate are produced from 1 mol of thyroxine since all of the iodide is transformed to iodate.
<h3>Describe thyroxine.</h3>
The primary hormone that the thyroid gland releases into the bloodstream is thyroxine. It is the inactive form, and organs like the liver and kidneys convert the majority of it into the active form triiodothyronine.
<h3>What occurs if thyroxine levels are too high?</h3>
When your thyroid gland generates too much of the hormone thyroxine, you get hyperthyroidism (overactive thyroid). Your body's metabolism may speed up as a result of hyperthyroidism, resulting in unexpected weight loss and a swift or erratic heartbeat.
<h3>What distinguishes thyroxine and TSH from one another?</h3>
Your thyroid gland then releases T4 and T3 with the aid of the TSH. TSH is essential to the system's operation. Your metabolism, emotions, and body temperature are all influenced by thyroxine (T4), among other things.
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Entropy is measure of disorder in system. Higher the disorder, greater the entropy.
Pair 1: NO2 (g) and N2O4 (g)
In the above case, entropy of N2O4 is more as compared to NO2, because N2O4 has more number of bonds as compared to NO2. So large number of vibrational energy levels are available for energy distribution which results in increasing entropy.
Pair 2: CH3OCH3(l) and CH3CH2OH(l)
Above compounds are structure isomers. They have same number of bonds and vibrational energy levels. However, presence of -OH group in CH3CH2OH results in intermolecular interaction via H bonding. This results in an ordered structure in CH3CH2OH as compared to CH3OCH3. Due to this entropy in CH3CH2OH is lower as compared to CH3OCH3.
Pair 3: HCl(g) and HBr(g)
In present case, HBr will have higher entropy as compared to HCl, because of larger number of sub-atomic particles in Br. Also, the higher molecular mass of HBr favors larger entropy.
Answer:
- <u>b. three half-lives</u>
Explanation:
The number of half-lives elapsed, n, is calculated dividing the time by the half-life time:
- n = time / half-life time
<u>a. A sample of Ce-141 with a half-life of 32.5 days after 32.5 days</u>
- n = 32.5 days / 32.5 days = 1 half-life
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<u>b. A sample of F-18 with a half-life of 110 min after 330 min</u>
- n = 330 min / 110 min = 3 half-lives
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<u>c. A sample of Au-198 with a half-life of 2.7 days after 5.4 days</u>
- n = 5.4 days / 2.7 days = 2 half-lives
1/12 = 1 : 12 = 0.08333 x 100 = 8.33 %
Answer: The ionization energies of anions of group 17 elements will be higher than for neutral atoms of the same group.
Explanation:
The ionization energy is the energy required to remove an electron from the valence shell of an isolated gaseous atom of an element.
Ionization energy depends on:
a) Electronic configuration of an element: If on losing or gaining of an electron an element attains noble gas configuration or half filled stability then it will be difficult to remove the electron from stable configuration.
b) size of an element :larger the size more lesser the effective nuclear charge on electron thus lower the ionization energy.
Group 17 elements have 7 valence electrons and thus on gaining one electron , they attain stable noble gas configuration and thus the ionization energy will become higher.
