Lemon juice has a ph 2.0. calculate the hydrogen ion. please give me ah complete formu
Answers
Explanation:
Solution
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PH=−log[H
+
]
Hence, [H
+
]=10
−pH
Milk: [H
+
]=10
−6.8
=1.58×10
−7
M
Black coffee: [H
+
]=10
−5.0
=1×10
−5
M
Tomato juice: [H
+
]=10
−4.2
=6.31×10
−5
M
Lemon juice: [H
+
]=10
−2.2
=6.31×10
−3
M
Egg white: [H
+
]=10
−7.8
=1.58×10
−8
M
Answer:
The pH of milk, black coffee, tomato juice, lemon juice and egg white are 6.8,5.0,4.2,2.2 and 7.8 respectively. Calculate corresponding hydrogen ion concentration in each.
PH=−log[H+]
Hence, [H+]=10−pH
Milk: [H+]=10−6.8=1.58×10−7M
Black coffee: [H+]=10−5.0=1×10−5M
Tomato juice: [H+]=10−4.2=6.31×10−5M
Lemon juice: [H+]=10−2.2=6.31×10−3M
The hydrogen ion concentration in pure water is10−7g.ions/lit. An aqueous solution will be acidic, if its hydrogen ion concentration in g. ions/ lit.