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Work these titration calculations:
1. A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia.
2. What volume of 0.5M HNO3 is required to neutralize 25 cm3 of a 0.2M NaOH solution?
3. Calculate the volume of 0.6M HNO3 necessary to neutralize 28.55 cm3 of 0.45M KOH.

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