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A sample of 7.80 L of NH3 (ammonia) gas at 22 ∘C and 735 torr is...

A sample of 7.80 L of NH3 (ammonia) gas at 22 ∘C and 735 torr is bubbled into a 0.450 L solution of 0.400 M HCl (hydrochloric acid). The Kb value for NH3 is 1.8×10−5.

Assuming all the NH3 dissolves and that the volume of the solution remains at 0.450 L , calculate the pH of the resulting solution.

Express your answer numerically to two decimal places.

Thanks!

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