-2 to 12. because adding water to an acid solution does not change its acid equilibrium constant, but it does modify the h+ ion concentration and ph, ka is a better estimate of an acid’s strength than ph. acid dissociation constant from ph the ph scale , or “power of hydrogen,” ...
When pKa is a whole number, such as -7, this operation is easy to perform, but when it contains a fraction, such as 7.5, you may have to look up the value in a table. You can also find it on a scientific calculator by inputting the number and pressing the exponent key, which ei...