Advertisements
Advertisements
Question
Define gram molecular mass of a substance. How much is the gram molecular mass of oxygen ?
Advertisements
Solution
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
RELATED QUESTIONS
Calculate the molecular mass of CH3OH.
Calculate the molecular masses of the following compounds :
Methanol, CH3OH
Calculate the molecular masses of the following :
Oxygen, O2
(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 ?
An unknown gas shows a density of 3 g per litre at 273°C and 1140 mm Hg pressure. What is the gram molecular mass of this gas?
Calculate the weight/mass of: `10^22` atoms of carbon
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
Calculate the relative molecular mass of CaSO4 [Zn = 65, S=32, O = 16, Ca = 40, C = 12]
Write the name of the following compound and deduce its molecular mass.
CO2
Calcium carbonate react with dilute hydrochloric acid as given below:
\[\ce{CaCO3 + 2HCl -> CaCl2 + H2O + CO2}\]
How many moles of \[\ce{HCl}\] will react with 5 moles of calcium carbonate?
