Химия

$n = \frac{m}{M}$

$M = \frac{m}{n}$

$N = nN_A$

$M_r = \sum n_i A_r(i)$

$\omega(E) = \frac{n_E A_r(E)}{M_r(\text{вещества})}$

$\omega = \frac{m_{\text{вещества}}}{m_{\text{раствора}}}$

$V = nV_m$

$\frac{n(A)}{\nu(A)} = \frac{n(B)}{\nu(B)}$

$n=\frac{N}{N_A}$

$m=nM$

$N=\frac{m}{M}N_A$

$m=\frac{N}{N_A}M$

$N(E)=\nu_E\,n(\text{вещества})\,N_A$

$n(E)=\nu_E\,n(\text{вещества})$

$m(E)=\omega(E)\,m(\text{вещества})$

$m(\text{вещества})=\frac{m(E)}{\omega(E)}$

$m_{\text{части}}=\frac{\omega_{\%}}{100\%}\,m_{\text{целого}}$

$\sum m_{\text{реагентов}}=\sum m_{\text{продуктов}}$

$m(E)=\\omega(E)\\,m_{\\text{вещества}}$

$m(A):m(B)=\\nu_A A_r(A):\\nu_B A_r(B)$

$n(E)=\\nu_E n_{\\text{соединения}}$

$N(E)=\\nu_E n_{\\text{соединения}}N_A$

$n=\\frac{N}{N_A}$

$m=\\frac{N M}{N_A}$

$m_0=\\frac{M}{N_A}$

$A_r=\\sum_i x_i A_i$

$x_i=\\frac{n_i}{\\sum n_i}$

$M_{\\text{смеси}}=\\sum_i x_i M_i$

$\\omega_i=\\frac{x_i M_i}{\\sum_j x_j M_j}$

$x_i=\\frac{\\omega_i/M_i}{\\sum_j \\omega_j/M_j}$

$a_{\\text{общ}}=\\sum_i \\nu_i$

$N_{\\text{атомов}}=a_{\\text{общ}} n N_A$

$\\omega(H_2O)=\\frac{kM(H_2O)}{M(\\text{гидрата})}$

$pV=nRT$

$n=\frac{pV}{RT}$

$p=\frac{nRT}{V}$

$V=\frac{nRT}{p}$

$V_m=\frac{RT}{p}$

$V_m=\frac{V}{n}=\frac{RT}{p};\quad V_m\approx22{,}4\,\text{л/моль}\ \text{при }273{,}15\,\text{К и }101{,}325\,\text{кПа}$

$n=\frac{V}{V_m}$

$V=nV_m$

$N=\frac{V}{V_m}N_A$

$\frac{V_1}{n_1}=\frac{V_2}{n_2}$

$p_1V_1=p_2V_2$

$p_2=p_1\frac{V_1}{V_2}$

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

$V_2=V_1\frac{T_2}{T_1}$

$\frac{p_1}{T_1}=\frac{p_2}{T_2}$

$p_2=p_1\frac{T_2}{T_1}$

$\frac{p_1V_1}{T_1}=\frac{p_2V_2}{T_2}$

$p=\sum_i p_i$

$p_i=x_i p$

$x_i=\frac{n_i}{\sum n_i}$

$\varphi_i=\frac{V_i}{V}$

$M_{sr}=\sum_i x_iM_i$

$\rho=\frac{pM}{RT}$

$M=\frac{\rho RT}{p}$

$D_{A/B}=\frac{M_A}{M_B}$

$\frac{v_1}{v_2}=\sqrt{\frac{M_2}{M_1}}$

$\frac{t_1}{t_2}=\sqrt{\frac{M_1}{M_2}}$