AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
The molarity of \(0.2 \mathrm{~N} \mathrm{Na}_2 \mathrm{CO}_3\) solution will be
- A \(0.05 \mathrm{M}\)
- B \(0.2 \mathrm{M}\)
- C \(0.1 \mathrm{M}\)
- D \(0.4 \mathrm{M}\)
Answer & Solution
Correct Answer
(C) \(0.1 \mathrm{M}\)
Step-by-step Solution
Detailed explanation
\(n\) - factor for \(\mathrm{Na}_2 \mathrm{CO}_3=2\) \(\therefore\) The \(n\)-factor of such salts is defined as the number of moles of electrons exchanged (lost or gained) by one mole of the salt and there is the exchange of 2 electrons, so its \(n\)-factor is 2. Therefore,…
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