JEE Advance - Chemistry (2021 - Paper 2 Online - No. 10)
Reaction of x g of Sn with HCl quantitatively produced a salt. Entire amount of the salt reacted with y g of nitrobenzene in the presence of required amount of HCl to produce 1.29 g of an organic salt (quantitatively).
(Use Molar masses (in g mol$$-$$1) of H, C, N, O, Cl and Sn as 1, 12, 14, 16, 35 and 119, respectively).
The value of y is _________.
(Use Molar masses (in g mol$$-$$1) of H, C, N, O, Cl and Sn as 1, 12, 14, 16, 35 and 119, respectively).
The value of y is _________.
Answer
1.23
Explanation
1 mole of organic salt is produced by 1 mole of nitrobenzene 0.01 mole of organic salt is produced by 0.01 mole nitrobenzene.
Molar mass of nitrobenzene
= 12 × 6 + 1 × 5 + 14 × 1 + 16 × 2
= 72 + 5 + 14 + 32= 123 g mol−1
Mass of nitrobenzene required,
y = moles of nitrobenzene × molar mass
= 0.01 × 123 = 1.23 g
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