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A 10.0-ml solution of 0.780 M NH3 is titrated with a 0.260 M HCL solution. calculate...

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Chemistry

A 10.0-ml solution of 0.780 M NH3 is titrated with a0.260 M HCL solution. calculate the pH after the followingadditions of the hcl solution:

A. 0.00

B. 10.0

C. 30.0

D. 40.0

Answer & Explanation Solved by verified expert
4.0 Ratings (813 Votes)
1 At initial we have 078 M of NH3 NH3 reacts with water as follows NH3 H2O NH4 OH construct ICE table for this NH3 H2O NH4 OH Initial 078M 0 0 Change x x x equilibrium 078 x 078 x x As Kb NH4 OHNH3 from text Kb for NH3 18 X 105 therefore 18 x105 x2078 x 1184    See Answer
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