A solution is prepared by dissolving 0.20 mol of acetic acid and 0.20 mol of ammonium chloride in enough water to make 1.0 L of solution.
Find the concentration of ammonia in the solution.
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To find the concentration of ammonia in the solution, we need to calculate the amount of ammonia in moles, and then divide it by the volume of the solution.
First, let's determine the amount of ammonia. In the given information, we know that 0.20 mol of ammonium chloride is dissolved in the solution. Ammonium chloride (NH4Cl) dissociates into ammonium ions (NH4+) and chloride ions (Cl-) in water. Since the ratio between ammonium ions and ammonium chloride is 1:1, we can say that 0.20 mol of ammonium chloride is equal to 0.20 mol of ammonium ions.
Next, we need to convert the amount of ammonia from moles to concentration. The concentration is given in moles per liter (mol/L). We have 1 liter of solution, so the concentration of ammonia would be:
Concentration of ammonia = amount of ammonia (in moles) / volume of solution (in liters)
= 0.20 mol / 1.0 L
= 0.20 mol/L
Therefore, the concentration of ammonia in the solution is 0.20 mol/L.