Answer: 
concentration of 
= 0.50 M
concentration of 
= 0.25 M
Explanation:
The dissociation equation of 
is:
According to stoichiometry:
1 mole of gives 2 moles of
Thus 0.25 moles of gives =
moles of
Similarly,
1 mole of gives = 1 mole of
Thus 0.25 moles of gives =
moles of
Thus the concentration of and are 0.50 M and 0.25 M respectively.
The stoichiometry of the reaction gives the molar ratio in which the reactants react with each other and the ratio in which products are formed.
The coefficients of the reactants in the reaction follow the stoichiometry
the balanced chemical equation for the reaction is as follows;
2C₃H₆(g) + 9O₂(g) ---> 6CO₂(g) + 6H₂O(l)
The quantum numbers for the last valence electron in nickel are (3, 2, 0, -½).
The electron configuration of nickel is [Ar]4s²3d⁸
The last electron added is a 3d electron, so <em>n</em> = 3 and <em>l</em> = 2.
We construct a table of quantum numbers.
<u>Element </u><em><u>n</u></em><u> </u><em><u>l</u></em><u> </u><em><u>m</u></em><u>ₗ mₛ </u>
Sc 3 2 2 +½
Ti 3 2 1 +½
V 3 2 0 +½
Cr 3 2 -1 +½
Mn 3 2 -2 +½
Fe 3 2 2 -½
Co 3 2 1 -½
Ni 3 2 0 -½
The quantum numbers for the last electron in nickel are (3, 2, 0, -½).
Wave speed = frequency * wavelength
Wave speed = 1.80 * 0.30
Wave speed = 0.54 m/s
