Advertisements
Advertisements
प्रश्न
Define gram molecular mass of a substance. How much is the gram molecular mass of oxygen ?
Advertisements
उत्तर
Gram molecular mass refers to the mass of a molecules in one mole of molecules of that substance. It is equal to the gram molecular weight of that element.
Oxygen exists as a diatomic molecule (O2); therefore, gram molecular mass of oxygen is 32 grams.
APPEARS IN
संबंधित प्रश्न
Calculate the molecular masses of the following :
Chlorine, Cl2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
How many molecules are present in one gram molecular mass of a substance ?
Calculate the mass of 12.044 × 1025 molecules of oxygen (O2).
Calculate the molecular mass of the following:
CuSO4·5H2O
Given atomic mass of Cu = 63·5, H = 1, O = 16, C=12, N = 14, Mg = 24, S = 32
Calculate the molecular mass of the following:
(NH₄)₂SO₄
[At mass : C = 12, H = 1, O = 16, Ci = 35.5, N = 14, Cu = 63.5, S = 32, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
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?
The gram molecular mass of oxygen molecule is ______.
Write the formulae for the following and calculate the molecular mass for each one of them.
- Caustic potash
- Baking powder
- Limestone
- Caustic soda
- Ethanol
- Common salt
Write the name of the following compound and deduce its molecular mass.
K2CO3
Write the name of the following compound and deduce its molecular mass.
NaOH
