Answer:
It is not equal to Avogadro constant
Explanation:
This is because Avogadro constant refer to the number of molecules or atoms of particles per mile substance and thus is equal to 6.022×10^23 per mile or unit of that substance.
a young female cattle is called a heifer.
Ionic bonds are easily disrupted in aqueous solutions, as they can ionize readily and as a result be surrounded by the solvent, water, where the partial positive and negative charges would be surrounding the appropriate charge of the ions.
Answer:
is the energy of one photon of this radiation.
Explanation:
where,
E = energy of photon
h = Planck's constant =
c = speed of light =
= Frequency of the radiation
= wavelength of the radiation":
We have :
Energy of the photon of the radiation :
is the energy of one photon of this radiation.
Answer:
B. 288. G
Explanation:
Moles of Al :
Given, Mass of Al = 20.4 g
Molar mass of Al = 26.9815 g/mol
The formula for the calculation of moles is shown below:
Thus,
The reaction between Al and I is shown below as:
2Al + 3I₂ ⇒ 2AlI₃
2 moles of aluminium react with 3 moles of iodine
1 mole of aluminium react with 3/2 moles of iodine
0.7561 moles of aluminium react with (3/2)*0.7561 moles of iodine
Moles of Iodine = 1.13415 moles
Molar mass of NaOH = 253.8089 g/mol
The formula for the calculation of moles is shown below:
Thus,
Mass of Iodine = 288 g