Advertisements
Advertisements
प्रश्न
Calculate the formula unit mass of K2CO3 given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Advertisements
उत्तर
Formula unit mass of K2CO3 = 2 × Atomic mass of K + Atomic mass of C + 3 × Atomic mass of O
= 2 × 39 + 12 + 3 × 16
= (78 + 12 + 48)u
= 138 u
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of H2.
Calculate the molecular mass of O2.
Calculate the molecular mass of C2H6.
Calculate the formula unit mass of Na2O given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular masses of the following :
Carbon dioxide, CO2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Calculate the molecular masses of the following compounds :
Ethanol, C2H5OH
Calculate:
The mass of oxygen in 2.2 litres of CO2 at STP.
Calculate the weight/mass of 0.25 gram atom of calcium.
Calculate the relative molecular mass of ZnCO3.
Write the name of the following compound and deduce its molecular mass.
NaHCO3
