The structure of haloacetic acids, XCH,COOH (where X is either F.CI, Br, or I), is shown above. The dissociation constants and m
olar masses of four haloacetic acids are listed in the table below
A student titrates 10.0 mL samples of 1.0 M solutions of each of the haloacetic acids with a standard solution of NaOH. Which of the following statements correctly predicts the volume of
NaOH(aq) needed to reach the equivalence point?
a) Fluoroacetic acid will need the smallest volume of NaOH(aq) to reach the equivalence point.
b) lodoacetic acid will need the smallest volume of NaOH(aq) to reach the equivalence point
c) All of the acids will need the same volume of NaOH(aq) to reach the equivalence point.
d) All of the haloacetic acids are weak therefore none will reach an equivalence point.
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A student titrates 10.0 mL samples of 1.0 M solutions of each of the haloacetic acids with a standard solution of NaOH. Which of the following statements correctly predicts the volume of
NaOH(aq) needed to reach the equivalence point?
a) Fluoroacetic acid will need the smallest volume of NaOH(aq) to reach the equivalence point.
b) lodoacetic acid will need the smallest volume of NaOH(aq) to reach the equivalence point
c) All of the acids will need the same volume of NaOH(aq) to reach the equivalence point.
d) All of the haloacetic acids are weak therefore none will reach an equivalence point.
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1 answer:
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<u>Answer:</u> The ion formed by lithium element is
<u>Explanation:</u>
Ions are formed when an atom looses or gains electrons.
If an atom gains electrons, it leads to the formation of negative ions known as anions. For Example: Fluorine gains 1 electron to form ions.
If an atom looses electrons, it leads to the formation of positive ions known as cations. For Example: Sodium looses 1 electron to form ions.
Lithium is the 3rd element of the periodic table having 3 electrons.
The electronic configuration of lithium element =
This element will loose 1 electron to attain stable electronic configuration and will lead to the formation of ion.
Hence, the ion formed by lithium element is