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The graph above shows the titration of 117 mL of 0.077 M ammonia (NH
4
+
) with 0.25 M sodium hydroxide solution.
What is the [NH
3
]/[NH
4
+
] ratio at point A on the curve? (Express as a decimal fraction, i.e. 0.333 instead of 1/3).
What is the [NH
3
] concentration at point A?
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What volume of NaOH solution is required to titrate the sample from point A to point B?
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