TS EAMCET · Chemistry · Some Basic Concepts of Chemistry
0.43 g of a metal of valence 2 was dissolved in 50 mL of \(0.5 \mathrm{M} \mathrm{H}_2 \mathrm{SO}_4\) solution. The unreacted acid required 14.2 mL of 1 M NaOH solution for neutralization. The atomic weight of the metal is
- A 56 u
- B 40 u
- C 27 u
- D \(24 u\)
Answer & Solution
Correct Answer
(D) \(24 u\)
Step-by-step Solution
Detailed explanation
\(\mathrm{M}+\mathrm{H}_2 \mathrm{SO}_4 \rightarrow \mathrm{MSO}_4+\mathrm{H}_2\) Number of milimoles of \(\mathrm{H}_2 \mathrm{SO}_4=25 \mathrm{mmol}\) Let x moles reacted with NaOH \(\therefore \mathrm{n}-\mathrm{x}=25-\mathrm{x} \mathrm{m}\) mols of…
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