An aqueous solution of iron(II) iodide has a concentration of 0.215 molal. The percent by mass of iron(II) iodide in the solutio
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Answer:
.
.
Explanation:
Hello,
In this case, since the ionization of methylamine is:
The equilibrium expression is:
And in terms of the reaction extent which is equal to the concentration of OH⁻ as well as that of CH₃NH₃⁺ via ice procedure we can write:
Whose solution for via quadratic equation is 9.24x10⁻³ M since the other solution is negative so it is avoided. Therefore, the concentration of OH⁻ is:
With which we can compute the pOH at first:
Then, since pH and pOH are related via:
The pH turns out:
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