Advertisements
Advertisements
प्रश्न
Calculate the relative molecular mass of ZnCO3.
Advertisements
उत्तर
Relative molecular mass of ZnCO3
= Zn + C + 3[O]
= 65 + 12 + 3[16]
= 77 + 48
= 125
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of CO2.
Calculate the molecular mass of C2H4.
Define 'molecular mass' of a substance.
The molecular formula of glucose is C6H12O6. Calculate its molecular mass. (Atomic masses : C = 12 u ; H = 1 u ; O = 16 u)
Calculate the molecular mass of ethanoic acid, CH3COOH.
(Atomic masses : C = 12 u ; H = 1 u ; O = 16 u)
Choose the correct answer from the options given below.
In water, the hydrogen-to-oxygen mass ratio is
Calculate the weight/mass of a molecule of NH3.
Urea [CO(NH2)2] is an important nitrogenous fertilizer. Urea is sold in 50 kg sacks. What mass of nitrogen is in one sack of urea?
Calculate the molecular mass of the following:
Na2SO4.10H2O
Given atomic mass of Cu = 63·5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32
The mass of one steel screw is 4.11g. Find the mass of one mole of these steel screws. Compare this value with the mass of the Earth (5.98 × 1024kg). Which one of the two is heavier and by how many times?
