Question

what is the molar mass of ch4? (c = 12.01 g/mol, h = 1.01 g/mol) a. 1 g/mol c. 13.02 g/mol b. 4 g/mol d. 16.05 g/mol enter the answer choice letter.

Explanation:

Step1: Calculate the mass of carbon in \(CH_4\)

The molar mass of \(C\) is \(12.01\ g/mol\). There is \(1\) \(C\) atom in \(CH_4\), so the mass contribution of \(C\) is \(12.01\times1 = 12.01\ g/mol\).

Step2: Calculate the mass of hydrogen in \(CH_4\)

The molar mass of \(H\) is \(1.01\ g/mol\). There are \(4\) \(H\) atoms in \(CH_4\), so the mass contribution of \(H\) is \(1.01\times4=4.04\ g/mol\).

Step3: Calculate the molar mass of \(CH_4\)

Add the mass contributions of \(C\) and \(H\): \(12.01 + 4.04=16.05\ g/mol\).

Answer:

D. \(16.05\ g/mol\)