Advertisements
Advertisements
प्रश्न
Calculate the molecular mass of hydrogen bromide (HBr). (Atomic masses : H = 1 u ; Br = 80 u)
Advertisements
उत्तर
Given:
Atomic mass of H = 1 u
Atomic mass of Br = 80 u
Therefore, molecular mass of HBr can be calculated as follows:
(1 × 1) + (1 × 80) = 81
Hence, molecular mass of hydrogen bromide is 81 u.
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of NH3.
Calculate the molecular mass of nitric acid, HNO3. (Atomic masses : H = 1 u ; N = 14 u ; O = 16 u)
Calculate the molecular masses of the following compounds :
Ethyne, C2H2
(Atomic masses : C = 12 u ; H = 1 u)
If sulphur exists as S8 molecules, calculate the number of moles in 100 g of sulphur. (S = 32 u)
Write the name of the following compound and deduce its molecular mass.
Na2SO4
Calculate the molecular mass of the following:
CH3COONa
[At mass : C = 12, H = 1, O = 16, Cl = 35.5, N = 14, Cu = 63.5, S = 32, Na = 23, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Calculate:
The volume of 4g of H2 at 4 atmosphere.
Calculate the weight/mass of an atom of hydrogen.
Calculate the weight/mass of the molecule of oxygen.
The formula unit mass of Ca3 (PO4)2 is ————.
