Write the balanced net reaction for the following half cells: Sn2+ / Sn Cr2+ / Cr
1 answer:
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Answer: The mass of liberated is 0.0383 g and the mass of NaH that reacted 0.455 g.
Explanation:
The given data is as follows.
Volume = 0.501 L,
Temperature of gas = = (35 + 273) K = 308 K,
Total pressure = 760 mm Hg
Vapor pressure of water at = 422 mm Hg
Partial pressure of = (760 - 422) mm Hg
= 717.8 mm Hg
The chemical equation is as follows.
Using ideal gas equation, we will find the moles of hydrogen gas as follows.
PV = nRT
n =
As we know,
1 atm = 760 mm Hg
717.8 mm Hg =
= 0.944 atm
Putting the given values into the above formula we will calculate the number of moles as follows.
n =
=
= 0.0190 moles
Now, we will find the mass of as follows.
Mass = Moles × Molar mass
= 0.0190 moles × 2.01588 g/mol
= 0.0383 g
Therefore, mass of hydrogen is 0.0383 g.
As the ratio between and NaH is 1:1. So, we will calculate the moles of NaH as follows.
Mass = Moles × Molar mass
= 0.0190 moles × 23.99771 g/mol
= 0.455 g
Therefore, mass of NaH is 0.455 g.
Electronic configuration: The distribution or arrangement of electrons of a molecule or an atom in molecular or atomic orbitals.
Ground state electron configuration: The distribution of electrons of an atom or molecule around the nucleus with lower levels of energy.
Now, stands for Ruthenium with atomic number 44. It is a metal and thus, has ability to lose electrons and, becomes positively charged ion.
One can write the electronic configuration with the help of atomic number and Afbau principle, Pauli exclusion principle etc.
Ground electronic Configuration is as follows:
Soft Hand notation:
Now, when ruthenium loses two electrons then it becomes , thus electron configuration becomes
Soft Hand notation:
The ground state electronic configuration of Ruthenium is and when it loses two electrons, then electronic configuration becomes
(
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