The conjugate base of H2 PO4– is
(a) PO43–
(b) P2O5
(c) H3PO4
(d) HPO42–.
1 Answers
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How many atoms are present in a (i) H2S molecule and (ii) PO4^3- ion?
(i) In an H2S molecule, three atoms are present; two of hydrogen and one of sulphur. (ii) In a PO43- ion, five atoms are present; one of phosphorus and four of...
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State the number of atoms present in each of the following chemical species (a) CO3 2– (b) PO4 3– (c) P2 O5 (d) CO
(a) 4 (b) 5 (c) 7 (d) 2
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what is the conjugate base of Al( H2O )6 +3
[Al(H2O)6]3+ + H2O ⇋ [Al(H2O)5(OH)]2+ + H3O+ Ka ~10-5 [1] cf acetic acid The OH- is bound as a ligand to the Al3+ cation thus the complex has an overall charge of...
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How many moles of magnesium phosphate, Mg3 (PO4)2 will contain 0.25mole of oxygen atoms?
(b) : 1mole of Mg3 (PO4 )2 => 3moles of Mg atom + 2 moles of P atom + 8 moles of O atom 8 moles of oxygen atoms are present in...
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What is the conjugate base of OH^– ?
(d) : Conjugate base of OH– is O2–. OH– ⇋ O2– + H+
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What is the conjugate acid and conjugate base of HCO3 - ion ?
Conjugate acid is H2CO3 a conjugate acid is CO3 2-
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Explain with an example that strong acids have very weak conjugate bases and a strong base have a very weak conjugate acid.
HCl + HOH --------> Cl- + H3O+ CH3COOH + HOH --------> CH3COO- + H3O+ HCl is strong acid but chloride ion is a weak base similarly CH3COOH is weak acid but CH3COO-...
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What is the difference between conjugate acid and the conjugate base.
These differ from each other by proton. Acid ----------> Conjugate base + proton Base ------------> Conjugate acid+ proton
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The ionization constant at 298 K is 1.8 x 10^-4 . Calculate the ionization constant of the corresponding conjugate base.
Ka x Kb =Kw Kb= Kw/Ka =1 x10-14/1.8x10-8 =5.55x10-7
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Ionization of HCl is given below: HCl + HOH -----------> Cl- + H3O+ label the two conjugate acid- base pairs in the ionization.
Cl - ion Conjugate base H3O+ ion Conjugate base,
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