Advertisements
Advertisements
प्रश्न
Calculate the molecular masses of the following :
- Hydrogen, H2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Advertisements
उत्तर
- Given:
Atomic mass of H = 1 u
Therefore, molecular mass of H2 can be calculated as follows:
1 × 2 = 2
Hence, molecular mass of H2 is 2 u.
APPEARS IN
संबंधित प्रश्न
Calculate the molecular masses of the following compounds :
Methane, CH4
(Atomic masses : C = 12 u ; H = 1 u)
Calculate the molar masses of the following substances. Write the results with proper units.
- Ozone molecule, O3
- Ethanoic acid, CH3COOH
Write the name of the following compound and deduce its molecular mass.
Na2SO4
Calculate the molecular mass of the following:
(NH4)2CO3
Given atomic mass of Cu = 63·5, H = 1, O= 16, C = 12, N = 14, Mg = 24, S = 32
Choose the correct answer from the options given below.
In water, the hydrogen-to-oxygen mass ratio is
Calculate the weight/mass of an atom of oxygen.
Calculate the weight/mass of 0.25 gram atom of calcium.
Molar mass of CO2 is 42g.
What is the SI prefix for each of the following multiples and submultiples of a unit?
- 103
- 10–1
- 10–2
- 10–6
- 10–9
- 10–12
A gas occupied 360 cm3 at 87°C and 380 mm Hg pressure. If the mass of gas is 0.546 g, find its relative molecular mass.
