To keep it really simple, Ar has 18 electrons. Then adding the 2 electrons of the 4s orbital , we get 20 which is the atomic number of Calcium whose symbol is Ca.
Similarly, Kr has 36 electrons. Then adding the 2 electrons of 5s, 10 electrons of 4d and 4 electrons of 5p orbitals,...
Was not sure if you meant -1/(2x)+ 1/(6y) = 2/3 or (-1/2)x + (1/6)y = 2/3
The solution for -1/(2x)+ 1/(6y) = 2/3 is as follows:
-1/(2x) + 1/(6y) = 2/3
could be rewritten as follows by adding 1/(2x) to both sides of the equation.
-1/(2x) + 1/(2x) + 1/(6y) =...
Although for this question, you will have to determine the Van't Hoff factor using the formula, there is a neat of verifying your answer.
Let us denote the Van't Hoff factor by i.
The i value for a molecule like say glucose (does not dissociate when dissolved in a solvent like water)is...
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Hope this answers your question.
4x - 2z = b-2.
In order to solve for x, shift all the other terms to the R.H.S (Right Hand Side of the equation).
4x = b-2 +2z
Now divide both sides by 4.
x = b/4 -2/4 + 2z/4 (Now we have to simplify or reduce the fractions)