AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
At STP ' \(x\) ' \(g\) of a metal hydrogen carbonate \(\left(\mathrm{MHCO}_3\right)\) (molar mass \(84 \mathrm{~g} \mathrm{~mol}^{-1}\) ) on heating gives \(\mathrm{CO}_2\), which can completely react with 0.2 moles of MOH (molar mass 40 \(\mathrm{g} \mathrm{mol}^{-1}\) ) to give \(\mathrm{MHCO}_3\). The value of ' \(x\) ' is
- A \(67.2\)
- B \(33.6\)
- C \(11.2\)
- D \(22.4\)
Answer & Solution
Correct Answer
(B) \(33.6\)
Step-by-step Solution
Detailed explanation
Given, 0.2 moles of MOH reacts completely with \(\mathrm{CO}_2\) \(\mathrm{CO}_2+\mathrm{MOH} \rightarrow \mathrm{M} \mathrm{HCO}_3\) \(0.2 \quad 0.2\) moles moles Now, \(2 \mathrm{MHCO}_3 \xrightarrow{\Delta} \mathrm{M}_2 \mathrm{CO}_3+\mathrm{CO}_2+\mathrm{H}_2 \mathrm{O}\) 1…
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