Ответ:
M(H3PO4) = 3 + 31 + 64 = 98
V = n * Vm = 5 * 22.4 = 112
m = n * M = 5 * 98 = 490
N = n * Na = 5 * 6.02 * 10^23 = 30.1 * 10^23
M(Cuo) = 63.5 + 16 = 79.5
n = m/M = 8/79.5 = 0.1
V= n * Vm = 0.1 * 22.4 = 2.24
N = n * Na = 0.1 * 6.02 * 10^23 = 0.602 * 10^23
M(Cl2) = 35.5 + 35.5 = 71
n= N/ Na = 18.06 * 10^23 / 6.02 * 10^23 = 3
m = n * M = 3 * 71 = 213
V = n * Vm = 3 * 22.4 = 67.2
M(CH4) = 12 + 4 = 16
n = V/ Vm = 224/22.4 = 10
m = n * M = 10 * 16 = 160
N = n * Na = 10 * 6.02 * 10^23 = 60.2 * 10^23
2Ca+O2=2CaO
CaO+H2O=Ca(OH)2
Ca(OH)2+2HNO3=Ca(NO3)2+2H2O
Ca(NO3)2+Na2CO3=CaCO3(осадок)+2NaNO3
CaCO3+HCl=CaCl+H2O+CO2(газ)
CaО + 3C=СaC2 + CO
СaC2 + H2O = Ca(OH)2 + C2H2
C2H2 + H2 <u>(t, Ni)-></u> C2H6
C2H6 + Cl2 <u>(hv)-></u> C2H5CI + HCl