Question

what is the molar mass of co2? 42.009 g/mol 40.009 g/mol 28.01 g/mol 44.009 g/mol

Explanation:

Step1: Find molar mass of each element

The molar mass of \(C\) (carbon) is \(12.01\space g/mol\), and the molar mass of \(O\) (oxygen) is \(16.00\space g/mol\).

Step2: Calculate molar mass of \(CO_2\)

For \(CO_2\), there is \(1\) carbon atom and \(2\) oxygen atoms. Using the formula \(M = M_{C}+2\times M_{O}\), substitute the values: \(M=(12.01 + 2\times16.00)\space g/mol=(12.01+32.00)\space g/mol = 44.01\space g/mol\approx44.009\space g/mol\)

Answer:

\(44.009\space g/mol\) (the option \(44.009\space g/mol\) is correct)