MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryMole conceptLaw of chemical combination, atomic & molecular mass, mole concept, calculations
How many molecules of \(\mathrm{H_2O}\) are contained in 2.48 g of \(\mathrm{Na_2S_2O_3H_2O}\) (at.wt. of Na=23,S=32)
A.[object Object]
B.[object Object]
C.[object Object]✓ Correct
D.[object Object]
Explanation
This question uses mole concept & particle counting. Convert all given quantities into moles using n = given amount/molar mass, use Avogadro's number where needed to get particles, and then compare with the options; this matches option C.
Mole concept & particle counting
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