Magnesium metal with the electron configuration [Ne] 3S2 bonds with the nonmetal Fluorine with the electron configuration [He] 2s2 2p5. The correct chemical formula is A) Mg2F B) Mg2F7 C) MgF D) MgF2

a) CO₂: 21,9%; CO: 7,0%; CH₄: 18,2%; H₂: 0,8%; N₂: 52,1%

b) 24,09 g/mol

Explanation:

a) It is posible to obtain the composition of the gas mixture in weight% using molecular mass of each compound, thus:

12% CO₂× = 528,1 g

6% CO× = 168,1 g

27,3% CH₄× = 438,2 g

9,9% H₂× = 20,0 g

44,8% N₂× = 1254,4 g

The total mass of the gas mixture is:

528,1g + 168,1g + 438,2g + 20,0g + 1254,4g = 2408,8 g

Thus composition of the gas mixture in weight% is:

CO₂: ×100 = 21,9%

CO: ×100 = 7,0%

CH₄: ×100 = 18,2%

H₂: ×100 = 0,8%

N₂: ×100 = 52,1%

b) The average molecular weight of the gas mixture is determined with mole % composition, thus:

0,12×44,01g/mol + 0,06×28,01g/mol + 0,273×16,05g/mol + 0,099×2,02g/mol + 0,448×28g/mol = 24,09 g/mol

I hope it helps!