Can someone help me plz!!! Calculate the mass, in grams, of 2 moles of CaCl2.
2 answers:
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Answer : The ion concentration is,
and the pH of a buffer is, 2.95
Explanation : Given,
Concentration of (weak acid)= 0.26 M
Concentration of (conjugate base or salt)= 0.89 M
First we have to calculate the value of .
The expression used for the calculation of is,
Now put the value of in this expression, we get:
Now we have to calculate the pH of the solution.
Using Henderson Hesselbach equation :
Now put all the given values in this expression, we get:
The pH of a buffer is, 2.95
Now we have to calculate the ion concentration.
The ion concentration is,