what is the molar mass of ch4?\n1 mol c = 12.01 g c\n1 mol h = 1.008 g h\n1 mol ch4 = ? g ch4\nround your…
what is the molar mass of ch4?\n1 mol c = 12.01 g c\n1 mol h = 1.008 g h\n1 mol ch4 = ? g ch4\nround your answer to two decimal places.
Answer
Explanation:
Step1: Identify carbon atoms
There is 1 carbon atom in $CH_4$. Its molar - mass contribution is 12.01 g/mol.
Step2: Identify hydrogen atoms
There are 4 hydrogen atoms in $CH_4$. Each H has a molar mass of 1.008 g/mol, so the total molar - mass contribution of H is $4\times1.008$ g/mol.
Step3: Calculate molar mass of $CH_4$
Add the molar - mass contributions of C and H. $M(CH_4)=12.01 + 4\times1.008$. $M(CH_4)=12.01+4.032 = 16.042$ g/mol.
Step4: Round the result
Round 16.042 g/mol to two decimal places.
Answer:
16.04 g/mol