We’re being asked to calculate the pH of a solution made by mixing 100.0 mL of 0.5 M NH3 with 200.0 mL of 0.250 M HBr
We will calculate the pH of the solution using the following steps:
Step 1. Write the chemical equation for the reaction between NH3 and HBr.
Step 2. Calculate the initial amounts of NH3 and HBr in moles before the reaction happens.
Step 3. Construct an ICF Chart.
Step 4. Calculate the new concentration of the species left in the solution.
Step 5. Calculate pH.
100.0 mL of a 0.50 M aqueous NH3 solution is mixed with 200.0 mL of 0.25 M aqueous HBr. At 25 °C the mixture will have a pH of
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