A student has two solutions of 0.10 M acid labeled just as A and B. The pH of one solution was found to be 1.02 and the other 4.73. You cannot tell the strength of an acid without measuring the pH of diluted solutions. Both are weak acids. One is a strong acid and one is a strong base. One is a strong acid and one is a weak base. Both are strong acids. One is a weak acid and one is a weak base. You cannot tell the strength of an acid from pH readings. One is a strong acid and one is a weak acid.
Both are strong acids. One is a weak acid and one is a weak base. HX and HY are weak acids, but HX is a stronger acid than HY. What result would you expect if you measured the pH of 0.1 Msolutions of HX and HY?