Classify the following bases as strong and weak bases:
NaHCO3, NaOH, KOH, Ca(OH)2, Mg(OH)2.
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Do we get Na2CO3 by heating NaHCO3?
Yes, we get Na2CO3 by heating NaHCO3
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why NaHCO3 & NaOH can't exist together in a solution:
NaHCO3 and NaOH both undergo chemical reaction and therefore cannot exist together in solution. NaHCO3 is an acidic salt while NaOH is a base, therefore the two reacts. The reaction is shown below...
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why NaHCO3 & NaOH can't exist together in a solution:
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Classify the following species into Lewis acids and Lewis bases and show how these act as such:
(a) Hydroxyl ion is a Lewis base as it can donate an electron lone pair (OH–). (b) Fluoride ion acts as a Lewis base as it can donate any one of...
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Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base:
(a) OH– is a Lewis base since it can donate its lone pair of electrons. (b) F – is a Lewis base since it can donate a pair of electrons. (c) H+...
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What is spectrochemical series? Explain the difference between a weak field ligand and a strong field ligand.
A spectrochemical series is the arrangement of common ligands in the increasing order of their crystal-field splitting energy (CFSE) values. The ligands present on the R.H.S of the series are...
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What are strong and weak acids? In the following list of acids,
In aqueous solutions, strong acids ionise completely and provide hydronium ions. On the other hand, weak acids are partially ionised and an aqueous solution of same molar concentration provides a much smaller...
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Which of the following statements is not correct? (A) Acetic acid is a weak acid and it ionizes only partially.
(B) Acetic acid turns red litmus blue but it does not affect blue litmus.
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Complete the following reaction : CH3COOH + NaHCO3 →
CH3COOH + NaHCO3 → CH3COONa + H2O + CO2
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The pK a of a weak acid, HA, is 4.80. The pKb of a weak base, BOH is 4.78.
(d) : Given that pKa = 4.8 and pKb = 4.78 Therefore, pH = 7 + 1/2 (pK a – pKb ) = 7 + 1/2 (4.80 – 4.78) = 7.01
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