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Question: Answered & Verified by Expert

The mass of NH3 produced when 131.8 kg of cyclohexane carbaldehyde undergoes Tollen’s test is _____ kg. (Nearest Integer)

Molar mass of C=12 g/mol

N=14 g/mol

O=16 g/mol

ChemistryAldehydes and KetonesJEE MainJEE Main 2023 (12 Apr Shift 1)
Solution:
2287 Upvotes Verified Answer
The correct answer is: 60

RCHO+2AgNH32OHRCOONH4+2Ag+3NH3+H2O

The RCHO is cyclohexane carbaldehyde (C6H11CHO). The molar mass is112g.

The number of moles of cyclohexane carbaldehyde=131.8×103112=1.176×103 mol

1 mole of aldehyde produces 3 moles of NH3

1.176×103 mol aldehyde will produce

=3×1.176×103 moles of NH3

Mass of NH3 produced =3×1.176×103×17

=59.97×103 g

 60 kg

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