Remember that the formula to calculare KA is the following <span>Ka = [H+ ion]*[conj. base] / [acid] </span>Now that you have the data you can do as the following: <span>Ka = [H+]*[base] / [acid] </span> <span>Ka = [x]*[x] / [acid - x] </span> <span>Ka = x^2 / [acid - x] </span>then we go <span>Ka = [.032]^2 / [.220 - .032] </span>Ka = <span> 5.4 x 10^-3. Or what is the same Ka = </span><span>.0054
I disagree, because a physical change changes the form, and a chemical change is a process where one or more substances are altered into new substances.
