a. nCH4 = V : 22,4 = 2,8 :22,4 = 0,125 (mol)
b. nCaO = m : M = 2 : 56 \(\approx\) 0,036 (mol)
c. nCl2 = 1,8.1023 : 6.1023 = 0,3 (mol)
Chúc bạn học tốt!
a, \(n_{CH4}=\frac{2,8}{22,4}=0,125\left(mol\right)\)
b, \(n_{CaO}=\frac{2}{56}=0,03\left(mol\right)\)
c,\(n_{Cl2}=\frac{1,8.10^{23}}{6.10^{23}}=0,3\left(mol\right)\)
\(n_{CH_4}=\frac{2.8}{22.4}=0.125\left(mol\right)\)
\(n_{CaO}=\frac{2}{56}\approx0.03\left(mol\right)\)
\(n_{Cl_2}=\frac{1.8\cdot10^{23}}{6.10^{23}}=0.03\left(mol\right)\)