The molar mass of carbon (C) is 12 grams per mole and the molar mass of hydrogen (H) is 1 gram per mole. Since methane consists of one carbon atom and four hydrogen atoms, its molar mass is given by:
\[M_{CH4} = M_C + 4 \cdot M_H = 12 \, g/mol + 4 \cdot 1 \, g/mol
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