Advertisements
Advertisements
प्रश्न
Fill in the blank with the correct word from the options given below:
Relative molecular mass of an element/compound is the number of times one ________ of the substance is heavier than −1/12that the mass of an atom of carbon [C12].
विकल्प
atom
ion
molecule
Advertisements
उत्तर
Relative molecular mass of an element/compound is the number of times one molecule of the substance is heavier than −1/12 that the mass of an atom of carbon [C12].
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of Cl2.
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 compounds :
Carbon disulphide, CS2
(Atomic masses : H = 1 u ; S = 32 u ; C = 12 u)
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)
Calculate the molecular masses of the following compounds :
Ethane, C2H6
(Atomic masses : C = 12 u ; H = 1 u)
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
What is meant by the ‘molar mass’ of a substance ? State the unit in which molar mass is usually expressed.
Write the name of the following compound and deduce its molecular mass.
Na2SO4
From the equation:
\[\ce{C + 2H2SO4 -> CO2 + 2H2O + 2SO2}\]
Calculate the mass of carbon oxidized by 49 g of sulphuric acid (C = 12, relative molecular mass of sulphuric acid = 98)
Calculate the relative molecular mass of ZnCO3.
