If HX is a weak acid. An aqueous solution of HX is prepared by dissolving 0.020 mol of HX in enough water to make 1.0 L of solution. The pH of the solution was 4.93 at 25.0 °C. The constant Ka of HX will be: Select one: a. 9.92X10-2 b. 2.8X10-12 c. 6.91x10-9 d. 2.2X10-5
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22. If HX is a weak acid. An aqueous solution of HX is prepared by dissolving 0.020 mol of HX in enough water to make 1.0 L of solution. The pH of the solution was 4.93 at 25.0 °C. The constant Ka of HX will be:
Select one:
a. 9.92X10-2
b. 2.8X10-12
c. 6.91x10-9
d. 2.2X10-5
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