Question: QUESTION: Why is there a discontinuity at p H 9 in the lines defining the area of stability of C u ( N H 3

QUESTION:
Why is there
a
discontinuity
at pH9 in
the lines
defining the
area of
stability of
Cu(NH3)2+?
Can
hydrogen gas
reduce
copper ions
in an
ammoniacal
solution
to copper
metal? Why?
The EHpH diagram for the copper-ammonia-water system (1(:MNH3,0.1MCU(II)+CU(I)}.
QUESTION: Why is there a discontinuity at pH9 in the lines

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