Answer:
Approximately .
Step-by-step explanation:
Remark: this approach make use of the fact that in the original solution, the concentration of and are equal.
Since is a salt soluble in water. Once in water, it would readily ionize to give and ions.
Assume that the and ions in this solution did not disintegrate at all. The solution would contain:
of , and
of from of .
Accordingly, the concentration of and would be:
.
In other words, in this buffer solution, the initial concentration of the weak acid is the same as that of its conjugate base, .
Hence, once in equilibrium, the of this buffer solution would be the same as the of .
Calculate the of from its :
I think the answer is B
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To find out how much more blue fabric than yellow fabric does Marcus need, subtract the quantity of yellow fabric from the quantity of blue fabric
step 1
Convert mixed number to an improper fraction
step 2
Subtract the numbers
Convert to mixed number