Calculate the molecular masses of the following: (a) Hydrogen, H2 (b

1.	Calculate the molecular masses of the following: (a) Hydrogen, H2 (b) Oxygen, O2 (c) Chlorine, Cl (d) Ammonia, NH3 (e) Carbon dioxide, CO2 (Atomic masses: C =12u; H= 1u; O = 16u; Cl = 35.5u; N = 14u )
Answer» (a).Molecular mass of Hydrogen (H₂) = 2 x H = 2 x 1 u = 2 u (b).Molecular mass of oxygen (O₂) = 2 x O = 2 x 16 u = 32 u (c).Molecular mass of chlorine (Cl₂) = 2 x Cl = 2 x 35.5 = 71 u (d).Molecular mass of Ammonia (NH₃) = 1 x N + 3 x H = 14 + 3 = 17 u (e).Molecular mass of carbon dioxide (CO₂) = 1 x C + 2 x O = 12 + 32 = 44 u

Calculate the molecular masses of the following: (a) Hydrogen, H2 (b) Oxygen, O2 (c) Chlorine, Cl (d) Ammonia, NH3 (e) Carbon dioxide, CO2 (Atomic masses: C =12u; H= 1u; O = 16u; Cl = 35.5u; N = 14u )

Answer»

(a).Molecular mass of Hydrogen (H₂) = 2 x H = 2 x 1 u = 2 u

(b).Molecular mass of oxygen (O₂) = 2 x O = 2 x 16 u = 32 u

(c).Molecular mass of chlorine (Cl₂) = 2 x Cl = 2 x 35.5 = 71 u

(d).Molecular mass of Ammonia (NH₃) = 1 x N + 3 x H = 14 + 3 = 17 u

(e).Molecular mass of carbon dioxide (CO₂) = 1 x C + 2 x O = 12 + 32 = 44 u