Question

2.1
2.2
(i)
Calculate the number of electrons which will together weigh one gram.
Calculate the mass and charge of one mole of electrons.
(i) Calculate the total number of electrons present in one mole of methane.
Find (a) the total number and (b) the total mass of neutrons in 7 mg of '*C.
(Assume that mass of a neutron = 1.675 x 10-27 kg).
(iii) Find (a) the total number and (b) the total mass of protons in 34 mg of NH, at
STP.
Will the answer change if the temperature and pressure are changed ?​

Answer 1

Answer:

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