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Part a
Consider the titration of 50.0 mL of 0.20 M NH 3 (K b =1.8×10 ?5 ) with 0.20 M HNO 3 . Calculate the pH after addition of 50.0 mL of the titrant.
Express the pH numerically.
Part b
A 30.0-mL volume of 0.50 M CH 3 COOH (K a =1.8×10 ?5 ) was titrated with 0.50 M NaOH . Calculate the pH after addition of 30.0 mL of NaOH.
When 0.2250 g Mg was heated with 0.5331 g N2 gas, all the Mg was consumed forming 0.3114 g Mg3N2.What mass of N2 is left over ?
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