Answer:- 44.01 gram per mol.
Solution:- Mass of one mole means the formula mass of the compound. Carbon dioxide has one carbon and two oxygens.
So, formula mass of carbon dioxide = atomic mass of C + 2(atomic mass of O)
Atomic mass of carbon is 12.01 and atomic mass of O is 16.00. So, formula mass of carbon dioxide = 12.01+2(16.00)
= 12.01+32.00
= 44.01
So, the mass of one mole of carbon dioxide is 44.01.