Answer
1/10
Work Step by Step
1. Utilize the Henderson-Hasselbalch equation listed as pH=pKa+log(base/acid)
2. Insert the given values into the equation to generate 5.0=6.0+log(base/acid)
3. Subtract 6.0 from the right-side of the equation to get -1.0=log(base/acid)
4. The power of 10 is the inverse of the logarithm, so raising both sides to the 10th power eliminates the logarithm and leaves 10^(-1.0)=base/acid
5. The answer ends up being 0.1 = base/acid. This means, that the fractional ratio is 1/10
