+
A). The of a solution changes from 5 to 8 when the solution is diluted by 1000
000 times.
(R) : When the conc.of M+ ion decreases by 10 times, then pH of the solution i
y 10 times, then PH of the solution increases by one unit.
s
Answers
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Answer:
∵pH=6
∴H
+
=10
−6
M
After dilution [H
+
]=
1000
10
−6
=10
−9
M
∴[H
+
] from H
2
O cannot be neglected.
Total [H
+
]=10
−9
+10
−7
=10
−7
(10
−2
+1)
=10
−7
(1.01)
pH=−log(1.01×10
−7
)
=7−0.0043
=6.9957
Explanation:
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