10 litres water is added with 1 litre of 2M sulphuric acid. what is the final molarity of the solution.
Answers
Answered by
0
Explanation:
20 ml 0.1M H
2
SO
4
⇒η
H
+
=4 mmol
30 ml 0.2M NH
4
OH⇒η
NH
4
OH=6
mmol
NH
4
OH+H
+
⇌NH
⨁
+H
2
O
⇒ 6 4 0 0
⇒ 2 0 4 4
Solution is a basic buffer
pOH=pK
b
+log
NH
4
OH
NH
4
+
=4.7+log2
=4.7+0.3=5
pH=14−5=9
Answered by
0
Explanation:
20 ml 0.1M H
2
SO
4
⇒η
H
+
=4 mmol
30 ml 0.2M NH
4
OH⇒η
NH
4
OH=6
mmol
NH
4
OH+H
+
⇌NH
⨁
+H
2
O
⇒ 6 4 0 0
⇒ 2 0 4 4
Solution is a basic buffer
pOH=pK
b
+log
NH
4
OH
NH
4
+
=4.7+log2
=4.7+0.3=5
pH=14−5=9
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