What is the molar mass of carbon monoxide (in units of g/mol)? Use two decimal places in atomic masses. Only give the numeric value of your answer. Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5x 10^5)
The Correct Answer and Explanation is:
The molar mass of carbon monoxide (CO) is calculated by adding the molar masses of carbon (C) and oxygen (O).
- The atomic mass of carbon (C) is 12.01 g/mol.
- The atomic mass of oxygen (O) is 16.00 g/mol.
To calculate the molar mass of CO:Molar mass of CO=12.01 g/mol+16.00 g/mol=28.01 g/mol\text{Molar mass of CO} = 12.01 \, \text{g/mol} + 16.00 \, \text{g/mol} = 28.01 \, \text{g/mol}Molar mass of CO=12.01g/mol+16.00g/mol=28.01g/mol
Therefore, the molar mass of carbon monoxide is:
2.8e1 g/mol
Explanation:
The molar mass is the mass of one mole of a substance, expressed in grams per mole (g/mol). In this case, we calculated it for CO by summing the atomic masses of carbon and oxygen atoms that make up the molecule. The atomic masses are based on standard atomic weights, and we used two decimal places as instructed. The final value is rounded to two significant figures as required, and the result is expressed in scientific notation, using 1 digit before the decimal point.
By using the atomic masses and adding them, we can easily determine the molar mass of carbon monoxide, which is essential for stoichiometric calculations in chemical reactions involving CO.
