Answer:
2M
Explanation:
Given parameters:
Number of moles of FeCl₃ = 0.3 moles
Volume of water = 150mL
Unknown:
Molarity of solution = ?
Solution:
The molarity of a solution is the number of moles of solutes in a given solution. It is one of the ways of expressing concentration. The unit is always M i.e mol/dm³.
Molarity =
Express the volume in dm³;
150mL gives 0.15dm³
Molarity =
= 2M
150 g SO₂ = 2.36 mol SO₂
M_r = 32.06 + 2×16.00 = 32.07 + 32.00 = 64.06
Moles of SO₂ = 151 g SO₂ × [1 mol SO₂/64.06 g SO₂] = 2.36 mol SO₂
Answer:
An ion with 11 protons, 11 neutrons, and 10 electrons would have a charge of 1+, also expressed as a charge of positive one or +1.
Two hydrogens are bonded with nitrogen
Chlorine is bonded with nitrogen
Because nitrogen has 5 valence electrons, and it has only used 3 electrons for bonding with chlorine and hydrogen, there is one pair of electrons left.
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 ( )