NCERT Exercise Questions || 2.2 || Structure of Atom || Part-2

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  • Опубликовано: 11 окт 2024
  • (i) Calculate the total number of electrons present in one mole of methane.
    (ii) Find (a) the total number and (b) the total mass of neutrons in 7 mg of 14C.
    (Assume that mass of a neutron = 1.675 × 10-27 kg).
    (iii) Find (a) the total number and (b) 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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