Answer: Molar mass of thyroxine is 776.5 g/mol.
Explanation:
Mass of thyroxine = 0.455 g
Mass of benzene = 10g =0.01kg (1 kg = 1000 g)
Formula used :
where,
= change in freezing point =
= freezing point constant =
m = molality
Now put all the given values in this formula, we get
Thus molar mass of thyroxine is 776.5 g/mol.
Answer:
There are 2 moles of oxygen molecules; there are 4 moles of oxygen atoms.
Explanation:
Answer:
There is a lot of biodiversity in this seafloor.
Explanation:
Biodiversity is just the diversity in species and animals in a certain environment.
Temperature is a measure of the average kinetic energy of the particles in the sample. This is the statement that defines the temperature of a sample of matter.
The temperature of a system is defined simply as the average energy of microscopic motions of a single particle in the system per degree of freedom.
The microscopic motions in a solid matter is the principal vibrations of the constituent atoms about their sites. In an ideal monoatomic gas, the microscopic motions are the translational motions of the constituent gas particles. In multiatomic gases, aside from translational motions, vibrational and rotational motions are included in the microscopic motions.
Answer:
<em>The energy of atomic orbitals increases as the principal quantum number, n, increases. In any atom with two or more electrons, the repulsion between the electrons makes energies of subshells with different values of I differ so that the energy of the orbitals increases within a shell in the order s< p <d<f. Figure 1 depicts how these two trends in increasing energy relate. The 1s orbital at the bottom of the diagram is the orbital with electrons of lowest energy. The energy increases as we move up to the 2s and then 2p, 3s, and 3p orbitals, showing that the increasing n value has more influence on energy than the increasing I value for small atoms. However, this pattern does not hold for larger atoms. The 3d orbital is higher in energy than the 4s orbital. Such overlaps continue to occur frequently as we move up the chart.</em>