1. m = p *V

V = N/n

Тогда:

v = m/M = p *V / M = (p/M)*(N/n) = p*N/Mn

2. v = N/Na = m/M => N/Na = m/M => N = (m/M)*Na = mNa/M

Тогда:

m0 = m/N = m / (mNa/M) = M/Na

3. m = p *V

N = n*V

Тогда:

m0 = m/N = (p *V) / n*V = p/n