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Chemistry Chemical Kinetics General Single Correct MCQ

Published on: August 12, 2026

(i) Find

the total number and the total number and

the total mass of neutrons in 7 mg of 14C. (Assume that mass of a neutron = 1.675 × 10–27 kg). (ii) Find the total mass of protons in 34 mg of NH3 at STP. Will the answer change if the temperature and pressure are changed?

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( i ) ( a ) 2.4088× 10 21 neutrons,

4.0347 × 10 –6 Kg;

(ii) 1.2044 × 10 22 protons, 2.015 × 10 –5 Kg

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